參數(shù)資料
型號: PT8146L
廠商: Princeton Technology Corporation
英文描述: 8-Bit 12-Ch I/O DAC
中文描述: 8位12通道的I / O援
文件頁數(shù): 7/27頁
文件大?。?/td> 367K
代理商: PT8146L
Tel: 886-2-66296288
I/O EXPANDER (CHANNEL SELECT = “1101”): SERIAL
CONVERSION
Performs parallel conversion of data bits D4 to DF for output on pins D0 to D11.
Note that only those pins designated for output in the ESR (expander status register) are output.
Shift register
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
PT8146 V1.1
- 7 -
February, 2006
8-Bit 12-Ch I/O DAC
PT8146
PARALLEL
DF
DE
DD
DC
DB
DA
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Parallel I/O pins (output state)
D
11
D
10
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
I/O EXPANDER (CHANNEL SELECT = “1110”): PARALLEL
CONVERSION
Writes data from D0 to D11 pins to bits D4 to DF in the shift register.
Data is output to the SO pin on the shift clock (CLK) signal. (The first 4 bits output data D0 to D3, so the
converted output should be read as data bits 5 through 16.)
Note that the data value is “0” for pins designated for output in the ESR (expander status register) as
well as analog output pins.
Shift register
SERIAL
DF
DE
DD
DC
DB
DA
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Parallel I/O pins (output state)
D
11
D
10
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
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