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參數(shù)資料
| 型號： | DM6806 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | DM5806 DATA MODULE DIGITAL I/O BOARD |
| 中文描述： | DM5806數(shù)據(jù)模塊數(shù)字I / O板 |
| 文件頁數(shù)： | 35/64頁 |
| 文件大?。?/td> | 270K |
| 代理商： | DM6806 |
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4-5
D7
D6
D5
D4
D3
D2
D1
D0
Set/Reset
Function Bit
0 = active
Bit Set/Reset
0 = set bit to 0
1 = set bit to 1
When bit 7 of this word is set to 0, a write can be used to individually program the Port C lines.
Bit Select
000 = PC0
001 = PC1
010 = PC2
011 = PC3
100 = PC4
101 = PC5
110 = PC6
111 = PC7
For example, if you want to set Port C bit 0 to 1, you would set up the control word so that bit 7 is 0; bits 1, 2,
and 3 are 0 (this selects PC0); and bit 0 is 1 (this sets PC0 to 1). The control word is set up like this:
D7
D6
D5
D4
D3
D2
D1
D0
Set/Reset
Function Bit
Bit Select
000 = PC0
Set PC0
X = don’t care
Sets PC0 to 1:
(written to BA +3)
0
X
X
X
0
0
0
1
BA + 4: IRQ Enable (Write Only)
Enables and disables interrupt generation. Writing a “1” enables interrupt generation; writing a “0” disables
interrupt generation.
D7
D6
D5
D4
D3
D2
D1
D0
Interrupt Enable/Disable
0 = interrupt disabled
1 = interrupt enabled
0
0
0
0
0
0
0
D7
D6
D5
D4
D3
D2
D1
D0
Interrupt Status
0 = no interrupt
1 = interrupt has occurred
X
X
X
X
X
X
X
BA + 5: Interrupt Status/Clear (Read/Write)
A read shows the status of the interrupt (bit 0 only) as defined below. A write clears the interrupt (data written is
irrelevant). Each time the interrupt status bit goes high, a write should follow to clear the bit.
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