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參數(shù)資料
| 型號(hào)： | W742E813 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT MICROCONTROLLER |
| 中文描述： | 4-BIT, FLASH, 3.58 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-100 |
| 文件頁數(shù)： | 27/45頁 |
| 文件大小： | 567K |
| 代理商： | W742E813 |
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Preliminary W742E81A/W742C81A
Publication Release Date: April 2000
Revision A1
- 27 -
6.17.4 Port Mode 5 Register (PM5)
The port mode 5 register is organized as 4-bit binary register (PM5.0 to PM5.3). PM5 can be used to
control the input/output mode of port RD. PM5 is controlled by the MOV PM5, #I instruction. The bit
descriptions are as follows:
PM5
Note: W means write only.
Bit 0 = 0 RD.0 works as output pin; Bit 0 = 1 RD.0 works as input pin
Bit 1 = 0 RD.1 works as output pin; Bit 1 = 1 RD.1 works as input pin
Bit 2 = 0 RD.2 works as output pin; Bit 2 = 1 RD.2 works as input pin
Bit 3 = 0 RD.3 works as output pin; Bit 3 = 1 RD.3 works as input pin
At initial reset, the port RD is input mode (PM5 = 1111B).
w
w
w
0
1
2
w
3
6.18 Input Ports RC
Port RC consists of pins RC.0 to RC.3. Each pin of port RC can be connected to a pull-up resistor,
which is controlled by the port mode 0 register (PM0). When the PEF, HEF, and IEF corresponding to
the RC port are set, a signal change at the specified pins of port RC will execute the hold mode
release or interrupt subroutine. Port status register 0 (PSR0) records the status of ports RC, i.e., any
signal changes on the pins that make up the ports. PSR0 can be read out and cleared by the MOV R,
PSR0, and CLR PSR0 instructions. In addition, the falling edge signal on the pin of port RC specified
by the instruction MOV SEF, #I will cause the device to exit the stop mode
.
Refer to Figure 6-12
and the instruction table for more details.
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相關(guān)代理商/技術(shù)參數(shù) |
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| W742E816 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
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| W742S819 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT TELEPHONE CONTROLLER |
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| W742S82A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT TELEPHONE CONTROLLER |
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