Chapter x96 Family Microcontrollers
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1 Chapter 14 80x96 Family Microcontrollers
2 Port P0 Reset Osc PTS AMUX S/H ADC IR ID Interrupt Control HSO HSI T1 Baud Execution unit PC WDT SI PSW AD0-AD8 T2 P3 PWM SP P4 T2CAP IO and internal devices SFRs Register file of 232B internal RAM P3, P4 AD8-AD15 Internal ROM Port P1 Port P2 Control and Sequencing Circuit 2
3 Lesson 3 80x96 MCU Special Function Registers 3
4 Special function Register Page bytes accessed by 256 addresses Between 0x0000 and 0x00FFH in four H- Windows Special Function Registers (SFRs) between 0x00 and 0x17H Special function register 1-bit stack pointer SP (at 0x18H 0x19) common in all four Windows A register file of 232 bytes (FFH 17H) page 0 RAM at Internal RAM 4
5 Special function Registers for Internal Devices and System T1 (Timer-Counter) with HSO units for out compares, HSI-units for input capture, four software timers for Real time interrupts T2 (Timer-Counter) with external clocking and reset inputs 5
6 Special function Registers for Internal SI (Serial Interface) with full duplex UART or half duplex synchronous serial communication PWMs Devices and System ADC - Analog inputs multi channel 6
7 Special function Registers for Internal Devices and System IO Ports Port P0, option EXINT1, option of analog inputs multi channel AMUX, S/H, ADC Port P4, AD8-AD15/A8-A15 options Port P3, AD0-AD7option Port P2, T2, PWM0, EXINT Port P1, PTS signals and PWM1, PWM2 7
8 On-Chip SFR Addresses in 80x96 Address Space 00H-19H Page 0 IO and internal Devices Registers System Registers WSR b6-b0 selects/ switches to a V or H-window 8
9 System Function Registers Examples WSR 13H When write SP INT_MSK INT_Pend WDT INT_MSK1 INT_Pend H 08H 09H 0AH 12H 13H PSW.7-PSW.0 Lower 8-bits Write two Times,first Lower 8-bits Then upper When read 9
10 Examples Window select Register INT_Pend1 When write 13H 12H interrupt pending register1 WDT watchdog 16-bit timer When write 0AH INT_Pend 09H interrupt pending register0 10
11 Examples interrupt mask register INT_Mask INT_Mask1 When read or write 08H When read or write 13H interrupt mask register1 11
12 Horizontal windows R0 16-bit 0x01-00 in all 4-windows ( Register always all 16-bits = 0) 12
13 Horizontal window 0 (read) and window 0 (write) AD_Command AD_Result_LO AD_Result_HO 13
14 Horizontal window 0 (read) and window 0 (write) HSO_Time (High speed output on comparison of Time) HSO_Command (High speed output on comparison of Time command ) HSO_Stat (High speed output on comparison of Time status) 14
15 Horizontal window 0 (read) and window 0 (write) HSI_Mode (High speed input captured mode) HSI_Time (High speed input captured Time) 15
16 Horizontal window 0 (read) and window 0 (write) SBUF (transmitter SBUF when written and receiver SBUF when read) 16
17 Horizontal window 0 (read) and window 0 (write) SP_Control (Serial Port Control) SP_Stat (Serial Port Status) 17
18 Horizontal window 0 (read) and window 0 (write) INT_Mask INT_Pending 18
19 Watchdog Horizontal window 0 (write) 19
20 Horizontal window 0 (read) and window 0 (write) IOC2 Timer 1 Timer 2 Baud_Rate 20
21 P0 P1 P2 Horizontal window 0 (read) and window 0 (write) 21
22 Horizontal window 0 (read) and INT_Pend 1INT_Mask1 WSR IOC0 IOS0 IOC1 IOS1 IOS2 0x17H window 0 (write) 22
23 All 4 H-windows Horizontal window 0 (read), window 0 (write), H1 and H15 SP 0x19-0x18 (16-bit) 23
24 SP Addresses in all H-windows Write Read SP-Lower 0018H SP-Upper 0019H Write Read 18-19H Write Horizontal Window H0-write read 18-19H Horizontal Window H0-read 24
25 Horizontal window 1 (read) cum AD_Time PTSSEL_LO PTSSEL_HO PTSSRV_LO PTSSRV_HO IOC3 PWM2Control PWM1Control (write) 25
26 Horizontal window 15 (read) cum (write) T2Capture_LO 0x0CH T2Capture_HO ox16h 26
27 Summary 27
28 H0 Read We learnt R0, AD result, HSI time, HSO status, Serial receive buffer, INT_Mask, INT_Pend, Timer 1, Timer 2, P0, P1, P2, SP_status INT_Pend1, INT_Mask1, WSR, IOS0, IOS1, IOS2, SP 28
29 H0 Write We learnt R0, AD Command, HSI mode, HSO Time, HSO_Command Serial port Serial transmit buffer, INT_Mask, INT_Pend, Watchdog timer, IOC2, Baud_Rate, P1, P2, Serial port SP_Control INT_Pend1, INT_Mask1, WSR, IOC0, IOC1 SP 29
30 We learnt H1 IOC3 four peripheral transaction server registers PWM2 control and PWM1 registers SP 30
31 We learnt H15 T2 Capture LO and HI registers SP 31
32 End of Lesson 3 on 80x96 MCU Special Function Registers 32
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