Rainbow Electronics W79E8213R User Manual
Rainbow Electronics Sensors
Preliminary W79E8213/W79E8213R Data Sheet
8-BIT MICROCONTROLLER
Publication Release Date: July 11, 2008
- 1 -
Revision A2
Table of Contents-
1.
GENERAL DESCRIPTION ......................................................................................................... 4
2.
FEATURES ................................................................................................................................. 5
3.
PARTS INFORMATION LIST ..................................................................................................... 6
3.1
Lead Free (RoHS) Parts information list......................................................................... 6
4.
PIN CONFIGURATION ............................................................................................................... 6
5.
PIN DESCRIPTIONS .................................................................................................................. 7
6.
FUNCTIONAL DESCRIPTION.................................................................................................... 8
6.1
On-Chip Flash EPROM .................................................................................................. 8
6.2
I/O Ports.......................................................................................................................... 8
6.3
Timers ............................................................................................................................. 8
6.4
Interrupts......................................................................................................................... 8
6.5
Data Pointer .................................................................................................................... 8
6.6
Architecture..................................................................................................................... 8
6.6.1
ALU ..................................................................................................................................9
6.6.2
Accumulator .....................................................................................................................9
6.6.3
B Register.........................................................................................................................9
6.6.4
Program Status Word .......................................................................................................9
6.6.5
Scratch-pad RAM .............................................................................................................9
6.6.6
Stack Pointer ....................................................................................................................9
6.7
Power Management........................................................................................................ 9
7.
MEMORY ORGANIZATION...................................................................................................... 10
7.1
Program Memory (on-chip Flash) ................................................................................. 10
7.2
Data Flash Memory ...................................................................................................... 10
7.3
Data Memory (accessed by MOVX) ............................................................................. 11
7.4
Scratch-pad RAM and Register Map ............................................................................ 11
7.4.1
Working Registers ..........................................................................................................12
7.4.2
Bit addressable Locations ..............................................................................................13
7.4.3
Stack ..............................................................................................................................13
8.
SPECIAL FUNCTION REGISTERS ......................................................................................... 14
9.
INSTRUCTION SET.................................................................................................................. 41
9.1
Instruction Timing.......................................................................................................... 49
10.
POWER MANAGEMENT.......................................................................................................... 52
10.1
Idle Mode ...................................................................................................................... 52
10.2
Power-down Mode ........................................................................................................ 52
11.
RESET CONDITIONS............................................................................................................... 53
11.1
Sources of reset............................................................................................................ 53
11.1.1
External Reset ..............................................................................................................54
11.1.2
Power-On Reset (POR)................................................................................................54