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參數(shù)資料
型號: W79E532A40DN
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, 40 MHz, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數(shù): 14/77頁
文件大小: 523K
代理商: W79E532A40DN
W79E532/W79L532
- 14 -
Port 1
Bit:
7
6
5
4
3
2
1
0
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
Mnemonic: P1
Address: 90h
P1.7
0: General purpose I/O port. Most instructions will read the port pins in case of a port read
access, however in case of read-modify-write instructions, the port latch is read. Some pins
also have alternate input or output functions. This alternate functions are described below:
P1.0 : T2
P1.1 : T2EX
External I/O for Timer/Counter 2
Timer/Counter 2 Capture/Reload Trigger
Port 4 Control Register A
Bit:
7
6
5
4
3
2
1
0
P41M1 P41M0
P41C1
P41C0
P40M1
P40M0 P40C1 P40C0
Mnemonic: P4CONA
Address: 92h
Port 4 Control Register B
Bit:
7
6
5
4
3
2
1
0
P43M1 P43M0
P43C1
P43C0
P42M1
P42M0 P42C1 P42C0
Mnemonic: P4CONB
Address: 93h
BIT NAME
P4xM1, P4xM0
FUNCTION
Port 4 alternate modes.
=00: Mode 0. P4.x is a general purpose I/O port which is the same as Port 1.
=01: Mode 1. P4.x is a Read Strobe signal for chip select purpose. The address
range depends on the SFR P4xAH, P4xAL and bits P4xC1, P4xC0.
=10: Mode 2. P4.x is a Write Strobe signal for chip select purpose. The address
range depends on the SFR P4xAH, P4xAL and bits P4xC1, P4xC0.
=11: Mode 3. P4.x is a Read/Write Strobe signal for chip select purpose. The
address range depends on the SFR P4xAH, P4xAL and bits P4xC1, P4xC0
Port 4 Chip-select Mode address comparison:
=00: Compare the full address (16 bits length) with the base address registers
P4xAH and P4xAL.
=01: Compare the 15 high bits (A15-A1) of address bus with the base address
registers P4xAH and P4xAL.
=10: Compare the 14 high bits (A15-A2) of address bus with the base address
registers P4xAH and P4xAL.
=11: Compare the 8 high bits (A15-A8) of address bus with the base address
registers P4xAH and P4xAL.
P4xC1, P4xC0
相關PDF資料
PDF描述
W79E532A40FL 8-BIT MICROCONTROLLER
W79E532A40FN 8-BIT MICROCONTROLLER
W79E532A40PL 8-BIT MICROCONTROLLER
W79E532A40PN 8-BIT MICROCONTROLLER
W79L532 8-BIT MICROCONTROLLER
相關代理商/技術參數(shù)
參數(shù)描述
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