wm8593seft-v Wolfson Microelectronics plc, wm8593seft-v Datasheet - Page 56

• Manufacturer Part Number: wm8593seft-v
• Description: 24-bit 192khz 2vrms Multi-channel Codec
• Manufacturer: Wolfson Microelectronics plc

WM8593
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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 42 GPIO1 Audio Interface Mux Configuration
Table 43 GPIO2 Audio Interface Mux Configuration
AIF_MUX10
REGISTER
REGISTER
ADDRESS
AIF_MUX9
ADDRESS
R45
2Dh
R46
2Eh
BIT
BIT
3:1
3:1
10
10
SEL[2:0]
SEL[2:0]
GPIO1_
GPIO1_
GPIO2_
GPIO2_
LABEL
LABEL
UPD
UPD
DEFAULT
DEFAULT
000
000
0
0
GPIO1 Pin Function Select
000 = Source DIO1
001 = Source DIO2
010 = Source DIO3
011 = Source DIO4
100 = Source DIO5
101 = Input to WM8593
110 = Source GPIO2
111 = Source ADC Data Output
GPIO1 Update
0 = Latch corresponding GPIO1 settings into
Register Map but do not update
1 = Latch corresponding GPIO1 settings into
Register Map and update
GPIO2 Pin Function Select
000 = Source DIO1
001 = Source DIO2
010 = Source DIO3
011 = Source DIO4
100 = Source DIO5
101 = Source GPIO1
110 = Input to WM8593
111 = Source ADC Data Output
GPIO2 Update
0 = Latch corresponding GPIO2 settings into
Register Map but do not update
1 = Latch corresponding GPIO2 settings into
Register Map and update
DESCRIPTION
DESCRIPTION
PD Rev 4.0 April 2008
Pre-Production
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