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參數資料
| 型號： | W742C813 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4-BIT, MROM, 3.58 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-100 |
| 文件頁數： | 36/56頁 |
| 文件大小： | 455K |
| 代理商： | W742C813 |
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W742E/C813
- 36 -
5.19.1 Port Status Register 0 (PSR0)
Port status register 0 is organized as 4-bit binary register (PSR0.0 to PSR0.3). PSR0 can be read or
cleared by the
MOVA R, PSR0
, and
CLR PSR0
instructions. The bit descriptions are as follows:
R
R
R
R
0
1
2
3
PSR0
Note: R means read only.
Bit 0 = 1 Signal change at RC.0
Bit 1 = 1 Signal change at RC.1
Bit 2 = 1 Signal change at RC.2
Bit 3 = 1 Signal change at RC.3
5.20 Input Ports RD
Port RD consists of pins RD.0 to RD.3. Each pin of port RD can be connected to a pull-high resistor,
which is controlled by the port mode 0 register (PM0). When the PEF and HEFD corresponding to the
RD port are set, a signal change at the specified pins of port RD will execute the hold mode release.
Port status register 1 (PSR1) records the status of signal changes on the pins of port RD. PSR1 can be
read out and cleared by the
MOVA R, PSR1
, and
CLR PSR1
instructions. In addition, the falling edge
signal on the pin of port RD specified by the instruction MOV SEF, #I will cause the device to exit the
stop mode
.
Refer to Figure 5-15 and the instruction table for more details.
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