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參數資料
型號: W79E201A16FN
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, 16 MHz, MICROCONTROLLER, PQFP44
封裝: ROHS COMPLIANT, QFP-44
文件頁數: 10/87頁
文件大小: 818K
代理商: W79E201A16FN
W79E201
- 10 -
Port 0
Bit:
7
6
5
4
3
2
1
0
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
Mnemonic: P0
Address: 80h
Port 0 is an open-drain bi-directional I/O port. This port also provides a multiplexed low order
address/data bus during accesses to external memory.
Stack Pointer
Bit:
7
6
5
4
3
2
1
0
SP.7
SP.6
SP.5
SP.4
SP.3
SP.2
SP.1
SP.0
Mnemonic: SP
Address: 81h
The Stack Pointer stores the Scratchpad RAM address where the stack begins. In other words, it
always points to the top of the stack.
Data Pointer Low
Bit:
7
6
5
4
3
2
1
0
DPL.7
DPL.6
DPL.5
DPL.4
Address: 82h
DPL.3
DPL.2
DPL.1
DPL.0
Mnemonic: DPL
This is the low byte of the standard 8052 16-bit data pointer.
Data Pointer High
Bit:
7
6
5
4
3
2
1
0
DPH.7
DPH.6
DPH.5
DPH.4
DPH.3
DPH.2
DPH.1
DPH.0
Mnemonic: DPH
Address: 83h
This is the high byte of the standard 8052 16-bit data pointer.
Power Control
Bit:
7
6
5
-
4
-
3
2
1
PD
0
SM0D SMOD0
GF1
GF0
IDL
Mnemonic: PCON
Address: 87h
BIT
7
NAME
SMOD 1: This bit doubles the serial port baud rate in mode 1, 2, and 3.
0: Framing Error Detection Disable. SCON.7 acts as per the standard 8052 function.
1: Framing Error Detection Enable, then and SCON.7 indicates a Frame Error and
acts as the FE flag.
-
Reserve
FUNCTION
6
SMOD0
5
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