cop8tab9 National Semiconductor Corporation, cop8tab9 Datasheet - Page 3

• Manufacturer Part Number: cop8tab9
• Description: 8-bit Cmos Flash Microcontroller With 2k Byte Or 4k Byte Memory
• Manufacturer: National Semiconductor Corporation

1.0 General Description ..................................................................................................................................... 1
2.0 Features ....................................................................................................................................................... 1
3.0 Block Diagram .............................................................................................................................................. 2
4.0 Ordering Information .................................................................................................................................... 2
5.0 Connection Diagrams ................................................................................................................................... 6
6.0 Architectural Overview ................................................................................................................................. 8
7.0 Absolute Maximum Ratings ....................................................................................................................... 10
8.0 Electrical Characteristics ............................................................................................................................ 10
9.0 Pin Descriptions ......................................................................................................................................... 13
10.0 Functional Description .............................................................................................................................. 15
11.0 In-System Programming ........................................................................................................................... 21
12.0 Timers ....................................................................................................................................................... 25
13.0 Power Save Modes .................................................................................................................................. 28
6.1 EMI REDUCTION ...................................................................................................................................... 8
6.2 IN-SYSTEM PROGRAMMING .................................................................................................................. 8
6.3 TRUE IN-SYSTEM EMULATION .............................................................................................................. 8
6.4 ARCHITECTURE
6.5 INSTRUCTION SET ................................................................................................................................. 8
6.6 PACKAGING/PIN EFFICIENCY ................................................................................................................ 9
9.1 EMULATION CONNECTION ................................................................................................................... 15
10.1 CPU REGISTERS ................................................................................................................................. 15
10.2 PROGRAM MEMORY ........................................................................................................................... 16
10.3 DATA MEMORY .................................................................................................................................... 16
10.4 OPTION REGISTER ............................................................................................................................. 16
10.5 SECURITY ............................................................................................................................................ 17
10.6 RESET ................................................................................................................................................... 17
10.7 OSCILLATOR CIRCUITS ...................................................................................................................... 18
10.8 CONTROL REGISTERS ....................................................................................................................... 20
11.1 INTRODUCTION ................................................................................................................................... 21
11.2 FUNCTIONAL DESCRIPTION .............................................................................................................. 21
11.3 REGISTERS .......................................................................................................................................... 21
11.4 MANEUVERING BACK AND FORTH BETWEEN FLASH MEMORY AND BOOT ROM ..................... 23
11.5 FORCED EXECUTION FROM BOOT ROM ......................................................................................... 23
11.6 RETURN TO FLASH MEMORY WITHOUT HARDWARE RESET ....................................................... 23
11.7 MICROWIRE/PLUS ISP ........................................................................................................................ 23
12.1 TIMER T0 (IDLE TIMER) ...................................................................................................................... 25
12.2 TIMER T1 .............................................................................................................................................. 26
12.3 MODE 1. PROCESSOR INDEPENDENT PWM MODE ....................................................................... 26
12.4 MODE 2. EXTERNAL EVENT COUNTER MODE ................................................................................ 26
12.5 MODE 3. INPUT CAPTURE MODE ..................................................................................................... 27
12.6 TIMER CONTROL FLAGS .................................................................................................................... 28
13.1 HALT MODE .......................................................................................................................................... 28
6.5.1 Key Instruction Set Features ............................................................................................................... 8
6.5.2 Single Byte/Single Cycle Code Execution
6.5.3 Many Single-Byte, Multi-Function Instructions .................................................................................... 8
6.5.4 Bit-Level Control .................................................................................................................................. 8
6.5.5 Register Set ......................................................................................................................................... 9
10.6.1 External Reset ................................................................................................................................. 18
10.6.2 On-Chip Power-On Reset ................................................................................................................ 18
10.7.1 R/C Oscillator ................................................................................................................................... 19
10.7.2 Crystal Oscillator .............................................................................................................................. 20
10.7.3 External Oscillator ............................................................................................................................ 20
10.7.4 Clock Prescaler ................................................................................................................................ 20
10.8.1 CNTRL Register (Address X'00EE) ................................................................................................. 20
10.8.2 PSW Register (Address X'00EF) ..................................................................................................... 20
10.8.3 ICNTRL Register (Address X'00E8) ................................................................................................ 21
10.8.4 ITMR Register (Address X'00CF) .................................................................................................... 21
11.3.1 ISP Address Registers ..................................................................................................................... 21
11.3.2 ISP Read Data Register .................................................................................................................. 22
11.3.3 ISP Write Data Register ................................................................................................................... 22
11.3.4 ISP Write Timing Register ................................................................................................................ 22
12.1.1 ITMR Register .................................................................................................................................. 25
..................................................................................................................................... 8
Table of Contents
......................................................................................... 8
3
www.national.com