參數(shù)資料
型號(hào): 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(yè)數(shù): 34/64頁(yè)
文件大?。?/td> 270K
代理商: DM6806
4-4
BA + 3: 8255 PPI Control Word (Write Only)
When bit 7 of this word is set to 1, a write programs the PPI configuration. Bit 6 must always be set to 0
(Mode 2 operation is not supported by the DM5806). The table below shows the control words for the 16 possible
Mode 0 Port I/O combinations.
1
0
X
X
D7
D6
D5
D4
D3
D2
D1
D0
Port C Lower
0 = output
1 = input
Port B
0 = output
1 = input
Mode Set Flag
1 = active
Port C Upper
0 = output
1 = input
Port A
0 = output
1 = input
Group B
Mode Select
00 = mode 0
01 = mode 1
1x = mode 2
Mode Select
0 = mode 0
1 = mode 1
X
X
X
X
Group A
8255 Port I/O Flow Direction and Control Words, Mode 0
Group B
Port C Upper
Port B
Port C Lower
Output
Output
Output
Output
Output
Input
Output
Input
Output
Output
Input
Input
Input
Output
Output
Input
Output
Input
Input
Input
Output
Input
Input
Input
Output
Output
Output
Output
Output
Input
Output
Input
Output
Output
Input
Input
Input
Output
Output
Input
Output
Input
Input
Input
Output
Input
Input
Input
Group A
Control Word
Port A
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Binary
Decimal
128
129
130
131
136
137
138
139
144
145
146
147
152
153
154
155
Hex
80
81
82
83
88
89
8A
8B
90
91
92
93
98
99
9A
9B
1 0 0 0 0 0 0 0
1 0 0 0 0 0 0 1
1 0 0 0 0 0 1 0
1 0 0 0 0 0 1 1
1 0 0 0 1 0 0 0
1 0 0 0 1 0 0 1
1 0 0 0 1 0 1 0
1 0 0 0 1 0 1 1
1 0 0 1 0 0 0 0
1 0 0 1 0 0 0 1
1 0 0 1 0 0 1 0
1 0 0 1 0 0 1 1
1 0 0 1 1 0 0 0
1 0 0 1 1 0 0 1
1 0 0 1 1 0 1 0
1 0 0 1 1 0 1 1
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