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W78E052DDG Datasheet - Nuvoton Technology
| Manufacturer: | Nuvoton Technology |
| Category: | Microcontrollers |
| Case Package: | DIP-40 |
| Description: | MCU 8Bit 8051 CISC 8KB EPROM 2.5V/3.3V/5V 40Pin DIP |
| Pictures: |
W78E052DDGDatasheet PDF
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W78E054D/W78E052D Data Sheet
8-BIT MICROCONTROLLER
Publication Release Date: Aug 31, 2012
- 1 - Revision A12
Table of Contents-
1 GENERAL DESCRIPTION .......................................................................................................... 4
2 FEATURES .................................................................................................................................. 5
3 PARTS INFORMATION LIST ...................................................................................................... 6
4 PIN CONFIGURATIONS ............................................................................................................. 7
5 PIN DESCRIPTIONS ................................................................................................................... 9
6 BLOCK DIAGRAM ..................................................................................................................... 11
7 FUNCTIONAL DESCRIPTION .................................................................................................. 12
7.1 On-Chip Flash EPROM ................................................................................................ 12
7.2 I/O Ports ........................................................................................................................ 12
7.3 Serial I/O ....................................................................................................................... 12
7.4 Timers ........................................................................................................................... 12
7.5 Interrupts ...................................................................................................................... 12
7.6 Data Pointers ............................................................................................................... 13
7.7 Architecture ................................................................................................................. 13
7.7.1 ALU ................................................................................................................................ 13
7.7.2 Accumulator ................................................................................................................... 13
7.7.3 B Register ...................................................................................................................... 13
7.7.4 Program Status Word ..................................................................................................... 13
7.7.5 Scratch-pad RAM ........................................................................................................... 13
7.7.6 Stack Pointer .................................................................................................................. 13
8 MEMORY ORGANIZATION ...................................................................................................... 14
8.1 Program Memory (on-chip Flash) .............................................................................. 14
8.2 Scratch-pad RAM and Register Map ......................................................................... 14
8.2.1 Working Registers .......................................................................................................... 16
8.2.2 Bit addressable Locations .............................................................................................. 17
8.2.3 Stack .............................................................................................................................. 17
9 SPECIAL FUNCTION REGISTERS .......................................................................................... 18
9.1 SFR Detail Bit Descriptions ........................................................................................ 20
10 INSTRUCTION .......................................................................................................................... 35
10.1 Instruction Timing ....................................................................................................... 43
11 POWER MANAGEMENT .......................................................................................................... 44
11.1 Idle Mode ...................................................................................................................... 44
11.2 Power Down Mode....................................................................................................... 44
12 RESET CONDITIONS ............................................................................................................... 45
12.1 Sources of reset ............................................................................................................ 45
12.1.1 External Reset .............................................................................................................. 45
12.1.2 Software Reset ............................................................................................................. 45
12.1.3 Watchdog Timer Reset ................................................................................................. 45
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