By using Elan s MTP (Multiple Time Programmable) writer, it s easy to perform the in-circuit programming for Elan s EM78M612 MTP micro-controllers.

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Lenard Booth
5 years ago
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1 1 Introduction By using Elan s MTP (Multiple Time Programmable) writer, it s easy to perform the in-circuit programming for Elan s MTP micro-controllers. 2 About General Description The is a series of Universal Serial Bus 8-bit RISC Multi-Time Programming (MTP) micro-controllers. It is specifically designed for USB low speed device application and to support legacy device such as PS/2 mouse. The also support one device address and two endpoints. The is implemented on RISC architecture. It has five-level stack and eight interrupt sources. The amount of General-purpose Input/Output pins is up to 15. Each device has 112 bytes SRAM and is embedded with 4 bytes of E 2 PROM. The ROM size of the is 2K. These series of chips have special features that accommodate your needs. These features are: Dual Clock mode which allows the device to run on very low power saving frequency Pattern Detecting Application function which is used in a serial transmission to count waveform width Width Modulation that can generate a duty-cycle-programmable signal AD converter with up to 10 bits resolution. Type 16Pin PDIP(300mil)/SOP(150mil) 18Pin PDIP(300mil)/SOP(300mil) 20Pin PDIP(300mil)/SOP(300mil) 24Pin PDIP(600mil)/SOP(300mil) 24Pin Skinny PDIP(300mil) 24Pin SSOP(150mil) (A/B/C/D) AP/AM (A/B/C/D) BP/BM (A/B/C/D) CP/CM (A/B/C/D) DP/DM (A/B/C/D) DK (A/B/C/D) HM Function Type Description The series has several types of packaging. Each type is divided into 4 modules, namely; original, with E 2 PROM, with A/D converter, and with both E 2 PROM and A/D converter. Hence, packaging configuration for each series is defined. The Table below summarizes which series of the belong to which module. Original With E 2 PROM With A/D Converter With Both A** B** C** D** 1 The contents in this document is subject to be changed without notice Revision /1/11

2 3 Program Pin List Program Pin Name IC Pin Name I/O 16 Pin 18 Pin 20 Pin 24 Pin Function During Programming Mode VPP P60 P Programming Voltage Input = +10V CLK P61 I CLK for DATA Pin DATA P62 I/O ROM series data Input/Output Pin PGM P63 I Program Enable Control Pin VSS VSS P Ground VNN VNN P Programming Voltage Input = -10V OSC OSCI I CLK for MTP memory address increment VDD VDD P Programming Voltage Input = +4V or +2V OEB P64 I Output Enable Control Pin for DATA 4 Dice Pad Vector P63 P62 P61 P60 P64 P65 P66 P67 5 P70 P P72 P P74 P P76 P77 17 (0,0) + VSS 9 VSS VSS VNN VDD OSCI OSCO VDD5V D_MNS D_PLUS The contents in this document is subject to be changed without notice Revision /1/11

3 5 ELAN MTPWTR MTPWTR Front View MTPWTR Back View 3 The contents in this document is subject to be changed without notice Revision /1/11

4 Resister Card View There are four types of the resister cards for MTPWTR Programming. XAP (16Pin ) XBP-1 (18Pin ) XCP (20Pin ) XDP (24Pin ) 4 The contents in this document is subject to be changed without notice Revision /1/11

5 6 MTPWTR Programming Socket Diagram XAP XBP P60(VPP) P64(OEB) P61(CLK) P60(VPP) P61(CLK) P62(DATA) P64(OEB) P62(DATA) P63(PGM)-3 15 XAP 26 P63(PGM)-4 15 XBP VSS(VSS) VSS(VSS) VNN(VNN) VNN(VNN) VDD(VDD) VDD(VDD) OSCI(OSC) OSCI(OSC) XCP XDP P60(VPP) P64(OEB) P61(CLK) P60(VPP) P64(OEB) P62(DATA) P61(CLK) P63(PGM) P62(DATA)-3 13 XCP XDP 28 P63(PGM) VSS(VSS) VSS(VSS) VNN(VNN) VNN(VNN) VDD(VDD) VDD(VDD) OSCI(OSC) OSCI(OSC) The contents in this document is subject to be changed without notice Revision /1/11

6 7 Application Note On-Board Programming with The following issues must be carefully noted during on-board programming with : 1. Isolation of all programming signal pins from the surrounding circuit. 2. Minimum and maximum operating voltage for VNN, VDD and VPP. 3. Choose the right type of the resister card (XAP/XBP-1/XCP/XDP) for programming. In a typical application circuit, each pin of the MCU may be connected with several active and/or passive components. Any component that is still connected to programming pins during programming could cause an MTP programming error. For example, capacitive loading on a programming signal pin could negatively affect the programming signal required rise time. Resistive loading will reduce the necessary programming signal voltages. Therefore, the first step to be taken when implementing the ICP circuit is to isolate all the programming pins. When the is programmed, the P60/VPP pin must be supplied with an external 10V DC level and the VNN pin must be supplied with an external 10V DC level. The VPP pin of EM78m612 also functions as INPUT pin (P60) during normal operation, and is normally connected to an external Pull-up/Pull-down resister. Therefore, it is recommended to disconnect the resister to isolate the VPP pin. Another important issue to be noted is the power supply voltage. The MTP programming specification states that the MCU should be programmed at 5V. When the application circuit s operating voltage is other than 5V, the VDD pin should be isolated. MTP Programming Precaution should also be exercised when performing MTP programming with its driver capabilities. The MTPWTR is not designed to drive signals over long connectors. It is therefore recommended that the cable length between the MTPWTR and the application circuit should be no longer than 20 centimeters. If the cable length is too long, programming may fail due to signal attenuation. 6 The contents in this document is subject to be changed without notice Revision /1/11

By using Elan s MTP (Multiple Time Programmable) Writer, it s easy to perform the in-circuit programming for Elan s EM78M611 MTP micro-controllers.

1 Introduction By using Elan s MTP (Multiple Time Programmable) Writer, it s easy to perform the in-circuit programming for Elan s EM78M611 MTP micro-controllers. 2 About EM78M611 General Description The