參數(shù)資料
型號: PIO-96
英文描述: 96 CHANNEL PROGRAMMABLE INPUT/
中文描述: 96通道可編程的輸入/
文件頁數(shù): 14/29頁
文件大?。?/td> 108K
代理商: PIO-96
Operating Guide
Page 15
Blue Chip Technology Ltd.
01271015.doc
Page 15
The following table gives a summary of the most commonly used ‘control
words’ which must be written to each control port to configure the
PD71055s
before using this module. The table assumes mode 0.
Typical Register Setups
Control
Word
(hex.)
Control
Word
(Dec.)
Sets All
of
Port B As
Sets High
4 Bits of
Port B As
Sets High
4 Bits of
Port C As
Sets Low
4 Bits of
Port C As
80
128
Output
81
129
Output
Input
82
130
Output
Input
Output
83
131
Output
Input
Output
Input
88
136
Output
Input
Output
89
137
Output
Input
8A
138
Output
Input
Output
8B
139
Output
Input
90
144
Input
Output
91
145
Input
Output
Input
92
146
Input
Output
93
147
Input
Output
Input
98
152
Input
Output
Input
Output
99
153
Input
Output
Input
9A
154
Input
Output
9B
155
Input
Table 4 - Simple I/O Control Words
For a full explanation of the various modes of operating, and the use of the
signal lines consult the Intel 8255 or NEC
PD71055 datasheet.
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