IA70C20 Datasheet, PDF (3/27 Pages) InnovASIC, Inc – 8-Bit Microcontroller

IA70C20
8-Bit Microcontroller
Data Sheet
August 19, 2008
TABLE OF CONTENTS
1. Features..................................................................................................................................... 4
2. Description................................................................................................................................ 5
2.1 CPU ............................................................................................................................... 6
2.2 Port A ............................................................................................................................ 6
2.3 Port B ............................................................................................................................ 6
2.4 Port C ............................................................................................................................ 7
2.5 Port D ............................................................................................................................ 7
2.6 Interrupt Controller ....................................................................................................... 7
2.7 Clock Controller............................................................................................................ 7
2.8 Perf File ......................................................................................................................... 7
2.9 Timer ............................................................................................................................. 7
2.10 ROM.............................................................................................................................. 7
3. Addressing Modes .................................................................................................................. 10
3.1 Single-Register Addressing Mode .............................................................................. 11
3.2 Dual-Register Addressing Mode ................................................................................. 12
3.3 Peripheral-File Addressing Mode ............................................................................... 13
3.4 Immediate Addressing Mode ...................................................................................... 13
3.5 Program Counter Relative Addressing Mode ............................................................. 14
3.6 Direct Memory Addressing Mode .............................................................................. 15
3.7 Register-File Indirect Addressing Mode ..................................................................... 15
3.8 Indexed Addressing Mode .......................................................................................... 16
4. Instruction Overview .............................................................................................................. 16
5. DC Characteristics .................................................................................................................. 24
6. AC Characteristics .................................................................................................................. 25
7. 70cX0 Errata ........................................................................................................................... 27
8. Revision History ..................................................................................................................... 27
IA211030117-05
Page 3 of 27
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