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參數(shù)資料
| 型號(hào)： | MSM81C55-5GS-2K |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 22 I/O, PIA-GENERAL PURPOSE, PQFP44 |
| 封裝： | 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件頁數(shù)： | 3/19頁 |
| 文件大小： | 147K |
| 代理商： | MSM81C55-5GS-2K |
11/19
Semiconductor
MSM81C55-5RS/GS/JS
(1) Programming the Command/Status (C/S) Register
The contents of the command register can be written during an I/O cycle by addressing it
with an I/O address of xxxxx000. Bit assignments for the register are shown below:
TM2
TM1
IEB
IEA
PC2
PC1
PB
PA
Definition of PA0 - 7
0= Input
Definition of PB0 - 7
1= Output
Definition of PC0 - 5
00=ALT1
11=ALT2
01=ALT3
10=ALT4
See the port
control
assignment
table.
Port A Interrupt Enable
1 = Enabled
Port B Interrupt Enable
0 = Disabled
Timer Command
00 = NOP : Does not affect counter operations.
01 = STOP : Stops the timer if it is runnning.
NOP if the timer is not runnning.
10 = STOP AFTER TC : Stops the timer when it reaches TC.
NOP if the timer is not running.
11 = START : If the timer is not running, loads the mode and
the count length, and immediately starts timer operation.
If the timer is running, loads a new mode and the count
length, and starts timer operation immediately after
TC is reached.
76543210
Pin
PC0
PC1
PC2
PC3
PC4
PC5
ALT1
Input port
ALT2
Output port
ALT3
A INTR
A BF
A STB
Output port
ALT4
A INTR
A BF
A STB
B INTR
B BF
B STB
Port Control Assignment Table
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| MSM82C51A-2GS-K | 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, PDSO32 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM81C55-5JS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER |
| MSM81C55-5RS | 制造商:ROHM Semiconductor 功能描述: 制造商:OK International 功能描述: |
| MSM82C37B-5GS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:PROGRAMMABLE DMA CONTROLLER |
| MSM82C37B-5JS | 制造商:OK International 功能描述:4 CHANNEL(S), 5 MHZ, DMA CONTROLLER, PQCC44 |
| MSM82C37B-5RS | 制造商:OK International 功能描述:4 CHANNEL(S), 5 MHz, DMA CONTROLLER, PDIP40 |
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