Contents
Product Specification (V1.2) 05.18.2007 • iii
1 General Description.................................................................................................. 1
2 Features .....................................................................................................................1
3 Pin Assignment......................................................................................................... 2
4 Block Diagram........................................................................................................... 2
5 Pin Description.......................................................................................................... 3
5.1 EM78P259NP/M.................................................................................................3
5.2 EM78P260NP/M/KM .........................................................................................4
6 Function Description ................................................................................................ 5
6.1 Operational Registers.........................................................................................5
6.1.1 R0 (Indirect Address Register)............................................................. ............5
6.1.2 R1 (Time Clock /Counter)..................................................................................5
6.1.3 R2 (Program Counter) and Stack................................................................... ...5
6.1.3.1 Data Memory Configuration................................................................ 7
6.1.4 R3 (Status Register)..........................................................................................8
6.1.5 R4 (RAM Select Register)................................................................. ................8
6.1.6 R5 ~ R6 (Port 5 ~ Port 6) ..................................................................................9
6.1.7 R7 (Port 7).........................................................................................................9
6.1.8 R8 (AISR: ADC Input Select Register).............................................................10
6.1.9 R9 (ADCON: ADC Control Register)............................................................... 11
6.1.10 RA (ADOC: ADC Offset Calibration Register)..................................................12
6.1.11 RB (ADDATA: Converted Value of ADC)......................... ................................12
6.1.12 RC (ADDATA1H: Converted Value of ADC).....................................................13
6.1.13 RD (ADDATA1L: Converted Value of ADC)................................................ .....13
6.1.14 RE (Interrupt Status 2 & Wake-up Control Register)........................................13
6.1.15 RF (Interrupt Status 2 Register).......................................................................14
6.1.16 R10 ~ R3F......................................................... ..............................................14
6.2 Special Purpose Registers............................................................................... 15
6.2.1 A (Accumulator)...............................................................................................15
6.2.2 CONT (Control Register)................................................................................. 15
6.2.3 IOC50 ~ IOC70 (I/O Port Control Register)..................................................... 16
6.2.4 IOC80 (Comparator and TCCA Control Register)............................................16
6.2.5 IOC90 (TCCB and TCCC Control Register)...... ..............................................17
6.2.6 IOCA0 (IR and TCCC Scale Control Register)........................................... .....18
6.2.7 IOCB0 (Pull-down Control Register)................................................................20
6.2.8 IOCC0 (Open-Drain Control Register).............................................................20
6.2.9 IOCD0 (Pull-high Control Register)................................................... ..............21
6.2.10 IOCE0 (WDT Control & Interrupt Mask Registers 2)........................................21
6.2.11 IOCF0 (Interrupt Mask Register)................................ .....................................22
6.2.12 IOC51 (TCCA Counter)......................................... ..........................................23