wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 104

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

58h
5Ah
WM9714L
Register 56h controls GPIO pull-up/down.
Register 5Ah controls several additional functions.
w
REGISTER
REGISTER
ADDRESS
ADDRESS
15:8
7:0
15:13
8
7:6
5:4
3:2
1
0
BIT
BIT
PU
PD
COMP2DEL
RSTDIS
JSEL
HPMODE
DIE REV
WAKEEN
IRQ INV
LABEL
LABEL
01000000
00000000
000 (no delay)
0 (RESETB
enabled)
00 (GPIO1)
00 (7Hz)
N/A
0 (disabled)
0 (normal)
DEFAULT
DEFAULT
GPIO Pin Pull-Up Control
1 = Enables weak pull-up on GPIO pins
0 = No pull-up on GPIO pins
GPIO Pin Pull-Down Control
1 = Enables weak pull-down on GPIO pins
0 = No pull-down on GPIO pins
Low Battery Alarm Delay Control
000 = No delay
001 = 2
010 = 2
011 = 2
100 = 2
101 = 2
110 = 2
111 = 2
RESETB Pin Disable Control
0 = Pin 11 is RESETB
1 = Pin 11 is GPIO (RESETB function disabled)
Jack Detect Pin Input Control
00 = GPIO1
01 = GPIO6
10 = GPIO7
11 = GPIO8
HPF Cut-Off Control
00 = 7Hz @ fs=48kHz
01 = 82Hz @ fs=16kHz
10 = 82Hz @ fs=8kHz
11 = 170Hz @ fs=8kHz
Device Revision (Read-Only)
00 = Rev.A
01 = Rev.B
10 = Rev.C
GPIO Wake Up Control
0 = Disable wake-up
1 = Enable wake up
IRQ Polarity Control
0 = Normal
1 = Inverted
13
14
15
16
17
18
19
AC-link frames
AC-link frames
AC-link frames
AC-link frames
AC-link frames
AC-link frames
AC-link frames
DESCRIPTION
DESCRIPTION
PP, Rev 3.2, October 2008
Pre-Production
GPIO and
Interrupt
Control
Battery Alarm
GPIO Interrupt
and Control
Jack Insertion
& Auto-
Switching
Audio ADCs
N/A
GPIO and
Interrupt
Control
REFER TO
REFER TO
104