WM9714L_06 WOLFSON [Wolfson Microelectronics plc], WM9714L_06 Datasheet - Page 81

• Manufacturer Part Number: WM9714L_06
• Description: AC 97 Audio CODEC
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

4Ch
4Eh
50h
52h
54h
56h
58h
Pre-Production
Register 4Ch to 54h control the GPIO pins and virtual GPIO signals.
Register 56h controls the use of GPIO pins for non-GPIO functions.
Register 56h controls GPIO pull-up/down.
w
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
15
14
12
11
10
9
8
7
6
5
4
3
2
1
8
6
5
4
2
15:8
7:0
BIT
BIT
BIT
please refer
to the
register map
GE8
GE6
GE5
GE4
GE2
PU
PD
LABEL
LABEL
LABEL
all 1 (all inputs)
all 1
all 0 (OFF)
1 (GPIO)
1 (GPIO)
1 (GPIO)
1 (GPIO)
1 (GPIO)
except unused
bits
all 0 (not sticky)
= status of GPIO
inputs
01000000
00000000
DEFAULT
DEFAULT
DEFAULT
Controls GPIO configuration as inputs or as outputs
(note: virtual GPIOs can only be inputs)
Controls GPIO polarity (actual polarity depends on
register 4Ch AND register 4Eh)
Makes GPIO signals sticky
Enables wake-up for each GPIO signal
GPIO pin status (read from inputs, write ‘0’ to clear
sticky bits)
Controls Comparator 1 signal (virtual GPIO)
Controls Comparator 2 signal (virtual GPIO)
Controls ADA signal (virtual GPIO)
Controls Thermal sensor signal (virtual GPIO)
Controls Microphone short detect (virtual GPIO)
Controls Microphone insert detect (virtual GPIO)
Controls GPIO8 (pin 3)
Controls GPIO7 (pin 11)
Controls GPIO6 (pin 12)
Controls GPIO5 (pin 48)
Controls GPIO4 (pin 47)
Controls GPIO3 (pin 46)
Controls GPIO2 (pin 45)
Controls GPIO1 (pin 44)
Selects between GPIO8 and SPDIF_OUT function
for pin 12
Selects between GPIO6 and ADA/MASK functions
for pin 3
Selects between GPIO5 and SPDIF_OUT function
for pin 48
Selects between GPIO4 and ADA/MASK functions
for pin 47
Selects between GPIO2 and IRQ function for pin 45
Enables weak pull-up on GPIO pins (1=On)
Enables weak pull-down on GPIO pins (1=On)
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP Rev 3.0 June 2006
WM9714L
GPIO and
Interrupt
Control
GPIO and
Interrupt
Control
REFER TO
REFER TO
GPIO and
Interrupt
Control
REFER
TO
81