ST10F296E. 16-bit MCU with MAC unit, 832 Kbyte Flash memory and 68 Kbyte RAM. Features

Transcription

1 16bit MCU with MAC unit, 832 Kbyte Flash memory and 68 Kbyte RAM Features High performance 16bit CPU with DSP functions ns instruction cycle time at 64 MHz max CPU clock Multiply/accumulate unit (MAC) 16 x 16bit multiplication, 40bit accumulator Enhanced boolean bit manipulation facilities Singlecycle context switching support Memory organization 512 Kbyte Flash memory (32bit fetch) 320 Kbyte extension Flash memory (16bit fetch) 100 k erasing/programming cycles Up to 16 Mbyte linear address space for code and data (5 Mbytes with CAN or I 2 C) 2 Kbyte onchip internal RAM (IRAM) 66 Kbyte onchip extension RAM (XRAM) Programmable external bus characteristics for different address ranges Five programmable chipselect signals Holdacknowledge bus arbitration support Interrupt 8channel peripheral event controller for single cycle interrupt driven data transfer 16prioritylevel interrupt system with 56 sources, sampling rate down to 15.6 ns Timers Two multifunctional general purpose timer units with 5 timers Two 16channel capture/compare units Analogtodigital converter (ADC) 32channel 10bit 3 µs minimum conversion time TImer for ADC channel injection 4channel PWM unit and 4channel XPWM Serial channels Two synchronous/asynch. serial channels Two highspeed synchronous channels I 2 C standard interface Two CAN 2.0B interfaces operating on one or two CAN busses (64 or 2 x 32 message objects, CCAN version) Failsafe protection Programmable watchdog timer Oscillator watchdog Onchip bootstrap loader Clock generation Onchip PLL and 412 MHz oscillator Direct or prescaled clock input Realtime clock Up to 143 general purpose I/O lines Individually programmable as input, output or special function Programmable threshold (hysteresis) Idle, powerdown and standby modes single voltage supply: 5 V ±10% (embedded regulator for 1.8 V core supply). Table 1. Order codes ST10F296 ST10F296TR PBGA 208 (23 x 23 x 1.96 mm) Device summary Temp. range ( C) CPU freq. range (MHz) 40 to to 64 October 2008 Rev 2 1/

2 Contents Contents 1 Description Ball data Functional description Memory organization IFlash XFlash Internal RAM (IRAM) Extension RAM (XRAM) Special function register (SFR) areas CAN CAN Realtime clock (RTC) Pulsewidth modulation 1 (PWM1) ASC SSC I 2 C XTimer/XMiscellaneous XPort 9/XPort Visibility of XBus peripherals XPeripheral configuration registers Internal Flash memory Functional description Structure Module structure Low power mode Write operation Power supply drop Internal Flash memory registers /346

3 Contents 5.4 Protection strategy Protection registers Access protection Write protection Temporary unprotection Write operation examples Word program Double word program Sector erase Suspend and resume Erase suspend, program and resume Set protection Write operation summary The bootstrap loader Selection among usercode, standard or alternate bootstrap Standard bootstrap loader (BSL) Entering the standard bootstrap loader ST10 configuration in BSL Booting steps Hardware to activate BSL Memory configuration in bootstrap loader mode Loading the startup code Exiting bootstrap loader mode Hardware requirements Standard bootstrap with UART (RS232 or Kline) Features Entering bootstrap via UART ST10 configuration in UART BSL (RS232 or Kline) Loading the startup code Choosing the baud rate for the BSL via UART Standard bootstrap with CAN Features Entering the CAN bootstrap loader ST10 configuration in CAN BSL Loading the startup code via CAN /346

4 Contents Choosing the baud rate for the BSL via CAN How to compute the baud rate error Bootstrap via CAN Comparing the old and the new bootstrap loader Software aspects Hardware aspects Alternate boot mode (ABM) Activation Memory mapping Interrupts ST10 configuration in alternate boot mode Watchdog Exiting alternate boot mode Alternate boot user software User/alternate boot mode signature check Alternate boot user software aspects Internal decoding of test modes Example of alternate boot mode operation Selective boot mode Central processing unit (CPU) Multiplieraccumulator unit (MAC) Instruction set summary MAC coprocessor specific instructions External bus controller (EBC) Programmable chip select timing control READY programmable polarity EA functionality Interrupt system XPeripheral interrupt Exception and error traps list Capture/compare (CAPCOM) units /346

5 Contents 11 General purpose timer unit GPT GPT Pulsewidth modulation (PWM) modules XPWM output signals XPWM registers Software control of the XPWM outputs Parallel ports I/O special features Opendrain mode Input threshold control I/0 port registers Alternate port functions Port Port 0 registers Alternate functions of Port Port Port 1 registers Alternate functions of Port Port Port 2 registers Alternate functions of Port Port 2 and external interrupts Port Port 3 registers Alternate functions of Port Port Port 4 registers Alternate functions of Port Port Port 5 registers Alternate functions of port Port 5 analog inputs disturb protection Port /346

6 Contents Port 6 registers Alternate functions of Port Port Port 7 registers Alternate functions of Port Port Port 8 registers Alternate functions of Port XPort XPort 9 registers XPort XPort 10 registers Alternate functions of XPort XPort 10 analog inputs disturb protection Analogtodigital converter (ADC) Mode selection and operation Calibration XTimer module Main features Serial channels Asynchronous/synchronous serial interface (ASC0) ASC0 in asynchronous mode Asynchronous mode baud rates ASC0 in synchronous mode Synchronous mode baud rates Asynchronous/synchronous serial interface (ASC1) High speed synchronous serial interface (SSC0) Baud rate generation High speed synchronous serial interface (SSC1) I 2 C interface I 2 C bus speed selection CAN modules /346

7 Contents 17.1 CAN module memory mapping CAN CAN Configuration support Clock prescaling CAN bus configurations Single CAN bus Multiple CAN bus Parallel mode System clock tolerance range Configuration of the CAN controller Calculation of the bit timing parameters Example of bit timing at high baud rate Example of bit timing at low baud rate Realtime clock (RTC) RTC registers Programming the RTC Watchdog timer System reset Input filter Asynchronous reset Poweron reset Hardware reset Exit from asynchronous reset state Synchronous reset (warm reset) Short and long synchronous reset Exit from synchronous reset state Synchronous reset and the RPD pin Software reset Watchdog timer reset Bidirectional reset WDTCON flags Reset circuitry /346

8 Contents 20.8 Reset application examples Reset summary Power reduction modes Idle mode Powerdown mode Protected powerdown mode Interruptible powerdown mode Standby mode Entering standby mode Exiting standby mode Power reduction modes summary Programmable output clock divider Register set Register description format General purpose registers (GPRs) SFRs ordered by name SFRs ordered by address X registers ordered by name X registers ordered by address Flash registers ordered by name Flash registers ordered by address Identification registers System configuration registers XPEREMU register Emulation dedicated registers Electrical characteristics Absolute maximum ratings Recommended operating conditions Power considerations Parameter interpretation DC characteristics /346

9 Contents 24.6 Flash characteristics ADC characteristics Conversion timing control ADC conversion accuracy Analog reference pins Analog input pins Example of external network sizing AC characteristics Test waveforms Definition of internal timing Clock generation modes Prescaler operation Direct drive Oscillator watchdog (OWD) Phaselocked loop (PLL) Voltage controlled oscillator PLL jitter Jitter in the input clock Noise in the PLL loop PLL lock/unlock Main oscillator specifications External clock drive XTAL Memory cycle variables External memory bus timing READY and CLKOUT External bus arbitration Highspeed synchronous serial interface (SSC) timing modes Package mechanical data Ordering information Revision history /346

10 List of tables List of tables Table 1. Device summary Table 2. Ball description Table 3. Address ranges for IFlash Table 4. Address ranges for IFlash Table 5. XPERCON register description Table 6. Segment 8 address range mapping Table 7. Flash module absolute mapping Table 8. Sectorization of the Flash modules (read operations) Table 9. Sectorization of the Flash modules (write operations or with ROMS1 = 1) Table 10. Control register interface Table 11. FCR0L register decription Table 12. FCR0H register decription Table 13. FCR1L register description (SMOD = 0, XFlash selected) Table 14. FCR1L register description (SMOD = 1, IFlash selected) Table 15. FCR1H register description (SMOD = 0, XFlash selected) Table 16. FCR1H register description (SMOD = 1, IFlash selected) Table 17. Banks (BxS) and sectors (BxFy) status bits meaning Table 18. FDR0L register description Table 19. FDR0H register description Table 20. FDR1L register description Table 21. FDR1H register description Table 22. FARL register description Table 23. FARH register description Table 24. FER register description Table 25. XFICR register description Table 26. FNVWPXRL register description Table 27. FNVWPXRH register description Table 28. FNVWPIRL register description Table 29. FNVWPIRH register description Table 30. FNVAPR0 register description Table 31. FNVAPR1L register description Table 32. FNVAPR1H register description Table 33. Summary of access protection levels Table 34. Flash write operations Table 35. boot mode selection Table 36. ST10 configuration in BSL mode Table 37. ST10 configuration in UART BSL mode (RS232 or Kline) Table 38. ST10 configuration in CAN BSL mode Table 39. Timer content ranges of BRP value in Equation Table 40. Software topics summary Table 41. Hardware topics summary Table 42. ST10 configuration in alternate boot mode Table 43. EMUCON register description Table 44. Selective boot mode configurations Table 45. Instruction set summary Table 46. MAC instruction set summary Table 47. Interrupt sources Table 48. XInterrupt detailed mapping /346

11 List of tables Table 49. Trap priorities Table 50. Compare modes Table 51. CAPCOM timer input frequencies, resolution, and periods at 40 MHz Table 52. CAPCOM timer input frequencies, resolution, and periods at 64 MHz Table 53. GPT1 timer input frequencies, resolution, and periods at 40 MHz Table 54. GPT1 timer input frequencies, resolution, and periods at 64 MHz Table 55. GPT2 timer input frequencies, resolution, and period at 40 MHz Table 56. GPT2 timer input frequencies, resolution, and period at 64 MHz Table 57. PWM unit frequencies and resolution at 40 MHz CPU clock Table 58. PWM unit frequencies and resolution at 64 MHz CPU clock Table 59. XPOLAR register description Table 60. XPWMPORT register description Table 61. PICON register description Table 62. XPICON register description Table 63. XPICON9 register description Table 64. XPICON9SET register description Table 65. XPICON9CLR register description Table 66. XPICON10 register description Table 67. P0L and P0H register description Table 68. DP0L and DP0H register description Table 69. P1L and P1H register description Table 70. DP1L and DP1H register description Table 71. P2 register description Table 72. DP2 register description Table 73. ODP2 register description Table 74. Alternate functions of Port Table 75. EXISEL register description Table 76. External interrupt selection Table 77. P3 register description Table 78. DP3 register description Table 79. ODP3 register description Table 80. Port 3 alternative functions Table 81. P4 register description Table 82. DP4 register description Table 83. ODP4 register description Table 84. Port 4 alternate functions Table 85. P5 register description Table 86. Port 5 alternate functions Table 87. P5DIDIS register description Table 88. P6 register description Table 89. DP6 register description Table 90. ODP6 register description Table 91. ODP6 register description Table 92. Port 6 alternate functions Table 93. P7 register description Table 94. DP7 register description Table 95. ODP7 register description Table 96. Port 7 alternate functions Table 97. P8 register description Table 98. DP8 register description Table 99. ODP8 register description Table 100. XS1PORT register description /346

12 List of tables Table 101. Port 8 alternate functions Table 102. XP9 register description Table 103. XP9SET register description Table 104. XP9CLR register description Table 105. XDP9 register description Table 106. XDP9SET register description Table 107. XDP9CLR register description Table 108. XODP9 register description Table 109. XODP9SET register description Table 110. XODP9CLR register description Table 111. XP10 register description Table 112. XPort 10 alternate functions Table 113. XP10DIDIS register description Table 114. XP10DIDISSET register description Table 115. XP10DIDISCLR register description Table 116. ADC programming at f CPU = 64 MHz Table 117. Different counting modes Table 118. Commonly used baud rates by reload value and deviation error (f CPU = 40 MHz) Table 119. Commonly used baud rates by reload value and deviation error (f CPU = 64 MHz) Table 120. Commonly used baud rates by reload value and deviation error Table 121. (f CPU = 40 MHz) Commonly used baud rates by reload value and deviation errors (f CPU = 64 MHz) Table 122. Synchronous baud rate and reload values (f CPU = 40 MHz) Table 123. Synchronous baud rate and reload values (f CPU = 64 MHz) Table 124. RTCCON register description Table 125. EXISEL register description Table 126. Interrupt sources associated with the RTC Table 127. WDTCON register description Table 128. WDTCON bit values on different resets Table 129. WDTREL reload value (f CPU = 40 MHz) Table 130. WDTREL reload value (f CPU = 64 MHz) Table 131. Reset event definition Table 132. Reset events summary Table 133. Latched configurations of Port 0 for the different reset events Table 134. EXICON register description Table 135. Power reduction modes summary Table 136. XCLKOUTDIV register description Table 137. Word register description Table 138. General purpose registers (GPRs) Table 139. General purpose registers (GPRs) bit wise addressing Table 140. SFRs ordered by name Table 141. SFRs ordered by address Table 142. X registers ordered by name Table 143. X registers ordered by address Table 144. Flash registers ordered by name Table 145. Flash registers ordered by address Table 146. IDMANUF register description Table 147. IDCHIP register description Table 148. IDMEM register description /346

13 List of tables Table 149. IDPROG register description Table 150. SYSCON register description Table 151. BUSCONx register description Table 152. RP0H register description Table 153. EXICON register description Table 154. EXISEL register description Table 155. External interrupt selection Table 156. xxic register description Table 157. XPERCON register description Table 158. Segment 8 address range mapping Table 159. Absolute maximum ratings Table 160. Recommended operating conditions Table 161. Thermal characteristics Table 162. Package characteristics Table 163. DC characteristics Table 164. Flash characteristics Table 165. Data retention characteristics Table 166. ADC characteristics Table 167. ADC programming Table 168. Onchip clock generator selections Table 169. Internal PLL divider mechanism Table 170. PLL lock/unlock timing Table 171. Main oscillator specifications Table 172. Negative resistance (absolute min C/V DD = 4.5 V) Table 173. External clock drive timing Table 174. Memory cycle variables Table 175. Multiplexed bus timings Table 176. Demultiplexed bus Table 177. READY and CLKOUT Table 178. External bus arbitration Table 179. Master mode Table 180. Slave mode Table 181. PBGA 208 (23 x 23 x 1.96 mm) mechanical data Table 182. Order codes Table 183. Document revision history /346

14 List of figures List of figures Figure 1. Logic diagram Figure 2. Pin configuration (bottom view) Figure 3. Block diagram Figure 4. onchip memory mapping Figure 5. Flash modules structure Figure 6. new standard bootstrap loader program flow Figure 7. Booting steps for the Figure 8. Hardware provisions to activate the BSL Figure 9. Memory configuration after reset Figure 10. UART bootstrap loader sequence Figure 11. Baud rate deviation between the host and Figure 12. CAN bootstrap loader sequence Figure 13. Bit rate measurement over a predefined zeroframe Figure 14. Reference signature computation Figure 15. Reset boot sequence Figure 16. CPU block diagram (MAC unit not included) Figure 17. MAC unit architecture Figure 18. Chip select delay Figure 19. EA/V STBY external circuit Figure 20. XInterrupt basic structure Figure 21. CAPCOM unit block diagram Figure 22. Block diagram of CAPCOM timers T0 and T Figure 23. Block diagram of CAPCOM timers T1 and T Figure 24. Block diagram of GPT Figure 25. Block diagram of GPT Figure 26. Block diagram of PWM module Figure 27. XPWM output signal generation Figure 28. SFRs and pins associated with the parallel ports (A) Figure 29. SFRs and pins associated with the parallel ports (B) Figure 30. Output drivers in pushpull mode and in opendrain mode Figure 31. Hysteresis concept Figure 32. Port 0 I/O and alternate functions Figure 33. Block diagram of a Port 0 pin Figure 34. Port 1 I/O and alternate functions Figure 35. Block diagram of a Port 1 pin Figure 36. Port 2 I/O and alternate functions Figure 37. Block diagram of a Port 2 pin Figure 38. Port 3 I/O and alternate functions Figure 39. Block diagram of a Port 3 pin Figure 40. Block diagram of pins P3.15 (CLKOUT) and P3.12 (BHE/WRH) Figure 41. Port 4 I/O and alternate functions Figure 42. Block diagram of Port 4 pins 3 to Figure 43. Block diagram of pin P Figure 44. Block diagram of pin P Figure 45. Block diagram of pin P Figure 46. Block diagram of pin P Figure 47. Port 5 I/O and alternate functions Figure 48. Block diagram of a Port 5 pin /346

15 List of figures Figure 49. Port 6 I/O and alternate functions Figure 50. Block diagram of Port 6 pins 7, 6, 1, Figure 51. Block diagram of pin P Figure 52. Block diagram of pins P6.2, P6.3, and P Figure 53. Port 7 I/O and alternate functions Figure 54. Block diagram of Port 7 pins 3 to Figure 55. Block diagram of Port 7 pins 7 to Figure 56. Port 8 I/O and alternate functions Figure 57. Block diagram of P8 pins 5 to Figure 58. Block diagram of pin P Figure 59. Block diagram of pin P Figure 60. XPort 10 I/O and alternate functions Figure 61. Block diagram of an XPort 10 pin Figure 62. ADC block diagram Figure 63. XTimer block diagram Figure 64. Asynchronous mode of serial channel ASC Figure 65. Synchronous mode of serial channel ASC Figure 66. Synchronous serial channel SSC0 block diagram Figure 67. Connection to a single CAN bus via separate CAN transceivers Figure 68. Connection to a single CAN bus via common CAN transceivers Figure 69. Connection to two different CAN buses (example for gateway application) Figure 70. Connection to one CAN bus with internal parallel mode enabled Figure 71. ESFRs and port pins associated with the RTC Figure 72. RTC block diagram Figure 73. Prescaler registers Figure 74. Divider counter registers Figure 75. Asynchronous poweron reset (EA = 1) Figure 76. Asynchronous poweron reset (EA = 0) Figure 77. Asynchronous hardware reset (EA = 1) Figure 78. Asynchronous hardware reset (EA = 0) Figure 79. Synchronous short/long hardware reset (EA = 1) Figure 80. Synchronous short/long hardware reset (EA = 0) Figure 81. Synchronous long hardware reset (EA = 1) Figure 82. Synchronous long hardware reset (EA = 0) Figure 83. Software/watchdog timer unidirectional reset (EA = 1) Figure 84. Software/watchdog timer unidirectional reset (EA = 0) Figure 85. Software/watchdog timer bidirectional reset (EA = 1) Figure 86. Software/watchdog timer bidirectional reset (EA = 0) Figure 87. Software/watchdog timer bidirectional reset (EA = 0) followed by a hardware reset Figure 88. Minimum external reset circuitry Figure 89. System reset circuit Figure 90. Example of software or watchdog bidirectional reset (EA = 1) Figure 91. Example of software or watchdog bidirectional reset (EA = 0) Figure 92. Port 0 bits latched into the different registers after reset Figure 93. External RC circuit on the RPD pin Figure 94. Simplified powerdown exit circuitry Figure 95. Powerdown exit sequence when using an external interrupt (PLL x 2) Figure 96. Port 2 test mode structure Figure 97. Supply current versus the operating frequency (run and idle modes) Figure 98. AD conversion characteristic Figure 99. ADC input pins scheme Figure 100. Charge sharing timing diagram during sampling phase /346

16 List of figures Figure 101. Antialiasing filter and conversion rate Figure 102. Input/output waveforms Figure 103. Float waveforms Figure 104. Generation mechanisms for the CPU clock Figure 105. PLL jitter Figure 106. Crystal oscillator and resonator connection diagram Figure 107. External clock drive XTAL Figure 108. Multiplexed bus with/without R/W delay and normal ALE Figure 109. Multiplexed bus with/without R/W delay and extended ALE Figure 110. Multiplexed bus with/without R/W delay, normal ALE, R/W CS Figure 111. Multiplexed bus with/without R/ W delay, extended ALE, R/W CS Figure 112. Demultiplexed bus with/without read/write delay and normal ALE Figure 113. Demultiplexed bus with/without R/W delay and extended ALE Figure 114. Demultiplexed bus with ALE and R/W CS Figure 115. Demultiplexed bus no R/W delay, extended ALE, R/W CS Figure 116. READY and CLKOUT Figure 117. External bus arbitration (releasing the bus) Figure 118. External bus arbitration (regaining the bus) Figure 119. SSC master timing Figure 120. SSC slave timing Figure 121. PBGA 208 (23 x 23 x 1.96 mm) outline /346

17 Description 1 Description The is a derivative of the STMicroelectronics ST10 family of 16bit singlechip CMOS microcontrollers. It combines high CPU performance (up to 32 million instructions per second) with high peripheral functionality and enhanced I/Ocapabilities. It also provides onchip highspeed single voltage Flash memory, onchip highspeed RAM, and clock generation via the phaselocked loop (PLL). is processed in 0.18 µm CMOS technology. The MCU core and the logic is supplied with a 5 V to 1.8 V onchip voltage regulator. The part is supplied with a single 5 V supply and I/Os work at 5 V. The device is upwardly compatible with the ST10F280 device, with the following differences: The Flash control interface is now based on STMicroelectronics third generation of standalone Flash memories (M29F400 series), with an embedded program/erase controller. This completely frees up the CPU during programming or erasing of the Flash. Pins DC1 and DC2 of ST10F280, are renamed as V 18. Do not connect these pins to 5.0 V external supply. Instead, these pin should be connected to a decoupling capacitor (ceramic type, typical value 10 nf, maximum value 100 nf). The AC and DC parameters are modified due to a difference in the maximum CPU frequency. The EA pin has assumed a new, alternate functionality: It is also used to provide a dedicated power supply (see V STBY ) to maintain a portion of the XRAM (16 Kbytes) biased when the main power supply of the device (V DD and consequently the internally generated V 18 ) is turned off for low power mode, thereby allowing data retention. V STBY voltage is in the range V, and a dedicated embedded low power voltage regulator provides the 1.8 V for the RAM. The upper limit of up to 6 V may be exceeded for a very short period of time during the global life of the device. The lower limit of 4 V may also be exceeded. A second SSC, mapped on the XBus, has been added (SSC of ST10F280 becomes SSC0, while the new SSC is referred to as XSSC or SSC1). There are some restrictions and functional differences due to peculiarities present in the XBus between the classic SSC and the new XSSC. A second ASC, mapped on the XBus, has been added (ASC0 of ST10F280 remains ASC0, while the new one is referred to as XASC or ASC1). Some restrictions and functional differences due to peculiarities present in the XBus between the classic ASC, and the new XASC. The second PWM (XPWM), mapped on the XBus, has been improved adding set/clear command for safe management of the control register. Memory mapping is thus slightly different. An I 2 C interface on the XBus has been added (see XI 2 C or simply I 2 C interface). The CLKOUT function can output either the CPU clock (as in ST10F280) or a software programmable prescaled value of the CPU clock. the embedded memory size has been significantly increased (both Flash and RAM). PLL multiplication factors have been adapted to new frequency range. 17/346