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WM8595 データシート(PDF) 44 Page - Wolfson Microelectronics plc

部品番号 WM8595
部品情報  24-bit 192kHz 2Vrms Multi-Channel CODEC
PDF  82 Pages
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メーカー  WOLFSON [Wolfson Microelectronics plc]
ホームページ  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8595 データシート(HTML) 44 Page - Wolfson Microelectronics plc

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WM8595
Production Data
w
PD, Rev 4.2, January 2011
44
USING GPIO PINS AS ADDITIONAL DATA PINS
There are two GPIO pins, GPIO1 and GPIO2, which can be used as additional pins to connect to
external devices. GPIO1 is controlled by GPIO1_SEL[2:0] and GPIO2 by GPIO2_SEL[2:0].
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R45
AIF_MUX9
2Dh
3:1
GPIO1_
SEL[2:0]
101
GPIO1 Pin Function Select
000 = Source DACDAT1
001 = Source DACDAT2
010 = Source ADCDAT
011 to 100 = Reserved
101 = Input to WM8595
110 = Source GPIO2
111 = Source ADC Data Output
Table 36 GPIO1 Audio Interface Mux Configuration
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R46
AIF_MUX10
2Eh
3:1
GPIO2_
SEL[2:0]
000
GPIO2 Pin Function Select
000 = Source DACDAT1
001 = Source DACDAT2
010 = Source ADCDAT
011 to 100 = Reserved
101 = Source GPIO1
110 = Input to WM8595
111 = Source ADC Data Output
Table 37 GPIO2 Audio Interface Mux Configuration



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