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PDF W79E834 Data sheet ( Hoja de datos )
| Número de pieza | W79E834 | |
| Descripción | 8-BIT MICROCONTROLLER | |
| Fabricantes | Winbond | |
| Logotipo |  |
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Preliminary W79E834 Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 4
2. FEATURES ................................................................................................................................. 4
3. PARTS INFORMATION LIST ..................................................................................................... 5
3.1 Lead Free (RoHS) Parts information list......................................................................... 5
4. PIN CONFIGURATION ............................................................................................................... 6
PIN DESCRIPTION ................................................................................................................................. 7
5. FUNCTIONAL DESCRIPTION ................................................................................................... 8
5.1 On-Chip Flash EPROM .................................................................................................. 8
5.2 I/O Ports.......................................................................................................................... 8
5.3 Serial I/O ......................................................................................................................... 8
5.4 Timers ............................................................................................................................. 8
5.5 Interrupts......................................................................................................................... 9
5.6 Data Pointers .................................................................................................................. 9
5.7 Architecture..................................................................................................................... 9
5.8 Power Management...................................................................................................... 10
6. MEMORY ORGANIZATION ..................................................................................................... 11
6.1 Program Memory .......................................................................................................... 11
6.2 Data Memory ................................................................................................................ 11
6.3 Register Map ................................................................................................................ 12
6.4 Working Registers ........................................................................................................ 14
6.5 Bit addressable Locations ............................................................................................ 14
6.6 Stack ............................................................................................................................. 14
7. SPECIAL FUNCTION REGISTERS ......................................................................................... 15
7.1 SFR Location Table ...................................................................................................... 15
7.2 SFR Detail Bit Descriptions .......................................................................................... 16
8. INSTRUCTION.......................................................................................................................... 44
8.1 INSTRUCTION TIMING................................................................................................ 44
9. POWER MANAGEMENT.......................................................................................................... 48
9.1 Idle Mode ...................................................................................................................... 48
9.2 Power Down Mode ....................................................................................................... 48
10. RESET CONDITIONS............................................................................................................... 49
10.1 External Reset .............................................................................................................. 49
10.2 Power-On Reset (POR) ................................................................................................ 49
Publication Release Date: October 12, 2006
- 1 - Revision A13
1 page  
Preliminary W79E834 Data Sheet
3. PARTS INFORMATION LIST
3.1 Lead Free (RoHS) Parts information list
PART NO.
W79E834ASG
EPROM
FLASH
SIZE
8KB
RAM
256B
AUX
RAM
256B
ADC
8x10Bit
W79E834ASG 8KB 256B 256B 8x10Bit
PWM
4x10Bit
4x10Bit
PACKAGE
LQFP-48 Pin
SOP-28 Pin
REMARK
Publication Release Date: October 12, 2006
- 5 - Revision A13
5 Page 
Preliminary W79E834 Data Sheet
6. MEMORY ORGANIZATION
W79E834 separates the memory into two separate sections, the Program Memory and the Data
Memory. The Program Memory is used to store the instruction op-codes, while the Data Memory is
used to store data or for memory mapped devices.
6.1 Program Memory
The Program Memory on W79E834 can be up to 8K bytes long. All instructions are fetched for
execution from this memory area. The MOVC instruction can also access this memory region.
6.2 Data Memory
W79E834 can read/write 256 bytes AUX RAM by the MOVX instruction. The data memory region is
from 0000H to 00FFH.
FFFFH
FFFFH
Unused
Code Memory
2000H
1FFFH
Unused
Data Memory
8K Bytes
On-Chip
Code Memory
00FFH
0000H
0000H
On-Chip Code Memory Space
256 Bytes
On-Chip
AUX RAM
CONFIG 2
CONFIG 1
0000H
External Data Memory Space
- 11 -
Publication Release Date: October 12, 2006
Revision A13
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet W79E834.PDF ] | |
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