wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 272

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

WM8351
Register 87h GPIO Pin Polarity / Type
w
REGISTER
REGISTER
ADDRESS
ADDRESS
R140 (8Ch)
Function
Select 1
GPIO
15:12
BIT
BIT
11:8
7:4
0
GP3_FN[3:0]
GP2_FN[3:0]
GP1_FN[3:0]
GP0_CFG
LABEL
LABEL
DEFAULT
DEFAULT
0000
0000
0001
0000
0000
0011
0011
0011
0001
0000
0001
0001
0
0
1
0
1
1 = Active high
Output:
0 = CMOS
1 = Open drain
Reset by state machine. Default held in metal mask.
GPIO0 pin polarity/type:
Input:
0 = Active low
1 = Active high
Output:
0 = CMOS
1 = Open drain
Reset by state machine. Default held in metal mask.
GPIO3 alternate function:
Input:
0000 = GPIO
0001 = PWR_ON
0010 = LDO_ENA
0011 = PWR_OFF
0100 = FLASH
Output:
0000 = GPIO
0001 = P_CLK
0010 = VRTC
0011 = 32kHz
0100 = /MEMRST
Reset by state machine. Default held in metal mask.
GPIO2 alternate function:
Input:
0000 = GPIO
0001 = PWR_ON
0010 = /WAKEUP
0011 = 32KHZ
0100 = L_PWR3
Output:
0000 = GPIO
0001 = PWR_ON
0010 = VRTC
0011 = 32KHZ
0100 = /RST
Reset by state machine. Default held in metal mask.
GPIO1 alternate function:
Input:
0000 = GPIO
0001 = PWR_ON
0010 = /LDO_ENA
0011 = L_PWR2
0100 = /WAKEUP
Output:
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
REFER TO
Production Data
272