IBM EM78P312N manual

Contents

Main EM78P312N 8-BIT Microcontroller Green Product Specification DOC. VERSION 1.0 ELAN MICROELECTRONICS CORP. All Rights Reserved Printed in Taiwan ELAN MICROELECTRONICS CORPORATION Contents APPENDIX Specification Revision History EM78P312N 1 General Description 2 Features Crystal mode: ERC mode: 3 Pin Assignment 4 Pin Description Table 1 EM78P312N Product Specification (V1.0) 10.03 .2 006 3 5 Function Description 5.1 Functional Block Diagram Fig. 5-1 Functional Block Diagram EM78P312N 8-Bit Microcontroller 5.2 Operating Registers 05 06 07 08 09 0A 0B 0C 0D 0E 0F 01 10 : 1F 20 : 3F Page 8-Bit Microcontroller User Memory Space On-chip Program Memory A11 A10 A9 A8 A7 ~ A0 6 Product Specification (V1.0) 10.03.2006 Page EM78P312N Page Page Page Page Page Page Page Page Page Page 5.3 Special Purpose Registers Page Page Page 5.4 CPU Operation Mode 8-Bit Microcontroller ** Interrupt request flag will be recorded 5.5 AD Converter Registers for AD Converter Circuit * * SPR : Special Purpose Registers Page 5.6 Time Base Timer and Keytone Generator D Q MUX TBKTC EM78P312N MUX 5.7 UART (Universal Asynchronous Receiver/Transmitter) EM78P312N 5.7.1 UART Mode Mode 3 Mode 1 Mode 2 EM78P312N 5.7.3 Receiving 5.7.4 Baud Rate Generator 8-Bit Microcontroller 5.8 SPI (Serial Peripheral Interface) Registers for the SPI Circuit R_BANK Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Fig. 5-13 SPI Block Diagram EM78P312N 5.8.1 Serial Clock SPID 5.8.2 Shift Direction and Sample Phase 5.8.3 Transfer Mode /SCK pin RBF WBE SPIF SPID SI p i n 8-Bit Microcontroller Slave Device 3 Slave Device 2 5.9 Timer/Counter 2 Registers for Timer/Counter 2 Cir cuit R_BANK Addr ess Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 EM78P312N 5.9.1 Timer Mode 5.9.2 Counter M ode 5.10 Timer/Counter 3 Registers for Timer/Counter 3 Circuit R_BANK Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 EM78P312N 5.10.1 Timer Mode 5.10.2 Counter Mode 5.10.3 Capture Mode 5.11 Timer/Counter 4 EM78P312N 5.11.1 Timer Mode 5.11.2 Counter Mode 5.11.3 PDO Mode EM78P312N 5.12 TCC/WDT & Prescaler EM78P312N 5.13 I/O Ports 5.14 Reset and Wake-up 5.14.1 Reset EM78P312N 5.14.2 Wake-up from Sleep Mode 5.14.3 Wake-up from Idle Mode 8-Bit Microcontroller 44 Product Specification (V1.0) 10.03.2006 Table 6. Summary of the Initialized Values for Registers Address Name Reset Type Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 8-Bit Microcontroller Product Specification (V1.0) 10.03 .2 006 45 Register Bank 0 Address Name Reset T ype Bit 7 Bit 6 Bit 5 Bi t 4 Bit 3 Bit 2 Bit 1 Bit 0 8-Bit Microcontroller 46 Product Specification (V1.0) 10.03.2006 Register Bank 1 Addres s Name Reset Type Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 8-Bit Microcontroller Product Specification (V1.0) 10.03 .2 006 47 Register Bank 2 EM78P312N 5.14.4 The Status of RST, T, and P of the Status Register 5.15 Interrupt EM78P312N 5.16 Oscillator 5.16.1 Oscill ator Modes 5.16.2 Crystal Oscillator/Ceramic Resonators (Crystal) Page EM78P312N 5.16.3 External RC Oscillator Mode EM78P312N 5.17 Code Option Register 5.17.1 Code Option Register (Word 0) EM78P312N 5.17.2 Customer ID Register 5.18 Power-on Considerations 5.18.1 External Power-on Reset Circuit EM78P312N 8-Bit Microcontroller 5.18.2 Residue-Voltage Protection 5.19 Instruction Set Page 8-Bit Microcontroller 6 Absolute Maximum Ratings 6.1 Absolute Maximum Ratings 6.2 Recommended Operating Conditions Vss = 0V 8-Bit Microcontroller 7 Electrical Characteristics 7.1 DC Electrical Characteristics Ta= 25 C, VDD= 5.0V 5%, VSS= 0V 8-Bit Microcontroller Ta= 25 C, VDD= 3.0V 5%, VSS= 0V 8-Bit Microcontroller A/D Converter Characteristic (Vdd =2.5V t o 5.5V, Vss=0V, Ta = -40 to 85C) 8-Bit Microcontroller 7.2 AC Electrical Characteristic * N= selected prescaler ratio Ta=- 40C ~ 85 C, VDD=5V 5%, VSS=0V Product Specification (V1.0) 10.03. 2 0 06 63 7.3 Timing Diagram RESET Timing (CLK="0") TCC Input Timing (CLKS="0") AC Test Input/Output Waveform APPENDIX A Package Types: