wm8595 Wolfson Microelectronics plc, wm8595 Datasheet - Page 44

• Manufacturer Part Number: wm8595
• Description: 24-bit 192khz 2vrms Multi-channel Codec
• Manufacturer: Wolfson Microelectronics plc

WM8595
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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].
Table 36 GPIO1 Audio Interface Mux Configuration
Table 37 GPIO2 Audio Interface Mux Configuration
AIF_MUX10
REGISTER
REGISTER
ADDRESS
AIF_MUX9
ADDRESS
R45
2Dh
R46
2Eh
BIT
BIT
3:1
3:1
SEL[2:0]
SEL[2:0]
GPIO1_
GPIO2_
LABEL
LABEL
DEFAULT
DEFAULT
101
000
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
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
DESCRIPTION
DESCRIPTION
PD, Rev 4.1, April 2010
Production Data
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