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參數資料
型號: W79E804ASG
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO20
封裝: 0.300 INCH, ROHS COMPLIANT, SOP-20
文件頁數: 37/115頁
文件大小: 1456K
代理商: W79E804ASG
W79E804A/803A/802A
Publication Release Date: July 16, 2007
- 37 -
Revision A2
BIT
NAME
FUNCTION
7
CY
Carry flag:
Set for an arithmetic operation which results in a carry being generated from the
ALU. It is also used as the accumulator for the bit operations.
Auxiliary carry:
Set when the previous operation resulted in a carry from the high order nibble.
User flag 0:
The General purpose flag that can be set or cleared by the user.
Register bank select bits.
Overflow flag:
Set when a carry was generated from the seventh bit but not from the 8th bit as
a result of the previous operation, or vice-versa.
User Flag 1:
The General purpose flag that can be set or cleared by the user software.
Parity flag:
Set/cleared by hardware to indicate odd/even number of 1's in the accumulator.
6
AC
5
F0
4~3 RS1~RS0
2
OV
1
F1
0
P
RS.1-0: Register Bank Selection Bits:
RS1
0
0
1
1
RS0
0
1
0
1
REGISTER BANK
0
1
2
3
ADDRESS
00-07h
08-0Fh
10-17h
18-1Fh
PWMP COUNTER HIGH BITS REGISTER
Bit:
7
6
5
4
3
2
1
0
-
-
-
-
-
-
PWMP.9
PWMP.8
Mnemonic: PWMPH
Address: D1h
BIT
NAME
FUNCTION
7-2
-
Reserved.
1-0
PWMP.[9:8]
The PWM Counter Register bits 9~8.
PWM 0 HIGH BITS REGISTER
Bit:
7
6
5
4
3
2
1
0
-
-
-
-
-
-
PWM0.9
PWM0.8
Mnemonic: PWM0H
Address: D2h
BIT
NAME
FUNCTION
7~2 -
Reserved.
1~0 PWM0.[9:8]
The PWM 0 High Bits Register bit 9~8.
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