wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 269

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

Production Data
Register 85h GPIO Control
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REGISTER
REGISTER
Configuration
ADDRESS
ADDRESS
R133 (85h)
R134 (86h)
Control
GPIO
GPIO
(i/o)
BIT
BIT
7:6
12
11
10
9
8
7
6
5
4
3
GP_DBTIME[1:0]
GP12_DIR
GP11_DIR
GP10_DIR
GP9_DIR
GP8_DIR
GP7_DIR
GP6_DIR
GP5_DIR
GP4_DIR
GP3_DIR
LABEL
LABEL
DEFAULT
DEFAULT
0
1
1
1
0
0
1
0
0
1
1
0
1
1
1
1
1
1
1
00
GPIO12 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO11 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO10 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO9 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO8 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO7 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO6 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO5 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO4 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
GPIO3 pin direction
0 = Output
1 = Input
Reset by state machine. Default held in metal mask.
Debounce time for all GPIO inputs
00 = 64us
01 = 0.5ms
10 = 1ms
11 = 4ms
Note: PWR_ON, PWR_OFF and /WAKEUP have
additional debounce times.
Reset by state machine.
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
REFER TO
WM8351
269