WM9712CLGEFL/RV WOLFSON [Wolfson Microelectronics plc], WM9712CLGEFL/RV Datasheet - Page 54
WM9712CLGEFL/RV
Manufacturer Part Number
WM9712CLGEFL/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM9712CLGEFLRV.pdf
(78 pages)
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WM9712L
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Table 39 Using GPIO Pins for Non-GPIO Functions
Table 40 Additional Functionality for GPIO Pins
REGISTER
ADDRESS
56h
GPIO pins
function
select
REGISTER
ADDRESS
58h
Additional
Functional
Control
BIT
2
3
4
5
BIT
0
1
LABEL
GE2
GE3
GE4
GE5
LABEL
IRQ INV
WAKEEN
DEFAULT
1
1
1
1
DEFAULT
0
0
DESCRIPTION
GPIO2 / IRQ output select
0: Pin 45 disconnected from GPIO logic
1: Pin 45 connected to GPIO logic (IRQ disabled)
GPIO3 / PENDOWN output select
0: Pin 46 disconnected from GPIO logic
1: Pin 46 connected to GPIO logic
GPIO4 / ADA / MASK output select
0: Pin 47 disconnected from GPIO logic
1: Pin 47 connected to GPIO logic
GPIO5 / SPDIF output select
0: Pin 48 = SPDIF (disconnected from GPIO logic)
1: Pin 48 connected to GPIO logic (SPDIF
disabled)
DESCRIPTION
Inverts the IRQ signal (pin 45)
0: IRQ signal not inverted
1: IRQ signal inverted
Enables GPIO wake-up
0: Disabled
1: Enabled
set 4Ch, bit 2 to ‘0’ to output IRQ signal
set 4Ch, bit 3 to ‘0’ to output PENDOWN signal
set 4Ch, bit 4 to ‘0’ to output ADA signal
set 4Ch, bit 4 to ‘1’ to input MASK signal
set 4Ch, bit 5 to ‘0’ to output SPDIF signal
PD, Rev 4.6, November 2011
Production Data
54
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