wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 73

• Manufacturer Part Number: wm9714l
• Description: Ac?97 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
Figure 27 GPIO Logic
Table 56 GPIO Bits and Pins
Note: GPIO7 (Pin 11) has an independent RESETB function. This must be disabled using RSTDIS (Register 5Ah, bit 8)
before using Pin 11 as a GPIO.
w
GPIO
BIT
10
11
12
14
15
1
2
3
4
5
6
7
8
9
12 BIT
SLOT
10
11
12
13
14
15
16
18
19
5
6
7
8
9
Virtual GPIO
Virtual GPIO
Virtual GPIO
Virtual GPIO
Virtual GPIO
Virtual GPIO
GPIO Pin
GPIO Pin
GPIO Pin
GPIO Pin
GPIO Pin
GPIO Pin
GPIO Pin
GPIO Pin
TYPE
[Thermal Cutout]
[MICDET]
[MICSHT]
[COMP2]
[COMP1]
PIN NO.
[ADA]
44
45
46
47
48
11
12
3
-
-
-
-
-
-
GPIO1
GPIO2 / IRQ
enabled only when pin not used as IRQ
GPIO3
GPIO4 / ADA / MASK
enabled only when pin not used as ADA
GPIO5 / S/PDIF_OUT
enabled only when pin not used as S/PDIF_OUT
GPIO6 / ADA / MASK
Enabled only when pin not used as ADA
GPIO7
GPIO8 / S/PDIF_OUT
enabled only when pin not used as S/PDIF_OUT
Internal microphone bias current detect, generates an interrupt above
a threshold (see MICBIAS Current Detect)
Internal shorted microphone detect, generates an interrupt above a
threshold (see MICBIAS Current Detect)
Internal thermal cutout signal, indicates when internal temperature
reaches approximately 150°C (see “Thermal Sensor”)
Internal ADA (ADC Data Available) Signal
enabled only when AUXADC is active
Internal COMP2 output (Low Battery Alarm)
enabled only when COMP2 is on
Internal COMP1 output (Dead Battery Alarm)
enabled only when COMP1 is on
DESCRIPTION
PP, Rev 3.2, October 2008
WM9714L
73