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參數(shù)資料
| 型號(hào)： | W742E |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機(jī)的小型通用紅外遙控器 |
| 文件頁(yè)數(shù)： | 33/66頁(yè) |
| 文件大?。?/td> | 303K |
| 代理商： | W742E |
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Preliminary W742C(E)811
Publication Release Date: May 1999
- 33 -
Revision A1
5.15.3 Port Enable Flag (PEF,P1EF)
The port enable flag is organized as 8-bit binary register (PEF.0 to PEF.7) and 4-bit register (P1EF.2 and
P1EF.3). Before port RC,RD may be used to release the hold mode , the content of the PEF must be
set first. The PEFand P1EF are controlled by the MOV PEF, #I MOV P1EF,#I instructions. The bit
descriptions are as follows. Besides release hold mode, the RC port can be bit controlled individually to
perform interrupt function.
PEF
w
w
w
4
5
6
w
7
w
w
w
0
1
2
w
3
w
w
-
0
1
2
-
3
P1EF
Note: W means write only.
PEF.0: Enable/disable the signal change at pin RC.0 to release hold mode or perform interrupt.
PEF.1: Enable/disable the signal change at pin RC.1 to release hold mode or perform interrupt.
PEF.2: Enable/disable the signal change at pin RC.2 to release hold mode or perform interrupt.
PEF.3: Enable/disable the signal change at pin RC.3 to release hold mode or perform interrupt.
PEF.4: Enable/disable the signal change at pin RD.0 to release hold mode.
PEF.5: Enable/disable the signal change at pin RD.1 to release hold mode.
PEF.6: Enable/disable the signal change at pin RD.2 to release hold mode.
PEF.7: Enable/disable the signal change at pin RD.3 to release hold mode.
P1EF.2: Enable/disable the falling edge signal at P1.2 to release hold mode.
P1EF.3: Enable/disable the falling edge signal at P1.3 t orelease hold mode.
5.15.4 Hold Mode Release Condition Flag (HCF,HCFD)
The hold mode release condition flag is organized as 8-bit binary register (HCF.0 to HCF.7) and HCFD. It
indicates which one releases the hold mode, and is set by hardware. The HCF can be read out by the
MOVA R, HCFL and MOVA R, HCFH instructions. When any of the HCF bits is "1," the hold mode will
be released. But the HCFD can not be read, it is only for internal flag. It records the port RD releasing
the hold mode. The HCF and HCFD are set by hardware and clear by software. The HCF should be clear
every time by the CLR EVF,#I and MOV HEF,#I instructions before enter the hold mode. And the HCFD
can be reset by the CLR EVFD or CLR HEFD instructions. When EVF,EVFD and HEF,HEFD have been
reset, the corresponding bit of HCF,HCFD is reset simultaneously. The bit descriptions are as follows:
R
R
HCF
0
1
2
3
4
5
R
R
R
6
7
R
R
R
HCFD: internal flag, can not be read
Note: R means read only.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W7700A | *****GESTRICHEN***** |
| W7700B | KLEMME FUER FLACHKABEL BIS 40 ADERN |
| W7700C | KLEMME FUER FLACHKABEL BIS 64 ADERN |
| W3435G | LEITERPLATTENSOCKEL TO18/3P 5ST |
| W3437G | LEITERPLATTENSOCKEL TO5/393P 5ST |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W742E/C811 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT MICROCONTROLLER |
| W742E811 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| W742E813 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W742E816 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| W742E81A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
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