wm8350 Wolfson Microelectronics plc, wm8350 Datasheet - Page 127

• Manufacturer Part Number: wm8350
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

Production Data
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Note: The alternate GPIO functions PWR_ON and /WAKEUP are system wakeup events. The debounce time of these
functions are determined by GP_DBTIME[1:0] + 40ms
GPIO PIN
GPIO10
GPIO11
GPIO12
GPIO2
GPIO3
GPIO0
GPIO1
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
DOMAIN
POWER
DBVDD
DBVDD
DBVDD
DBVDD
DBVDD
DBVDD
VRTC
VRTC
VRTC
VRTC
LINE
LINE
LINE
The default GPIO settings for configuration mode 11 are shown below in Table 69.
Table 69 Default GPIO Settings for Configuration Mode 11
Note that setting GP4_CFG = 1 results in Active Low function for /MR. Also, setting GP11_CFG = 1
results in Active Low function for /WAKEUP. In most cases, setting GPn_CFG = 1 results in Active
High function, but /MR, /WAKEUP and /LDO_ENA are exceptions to this. See Section 20.)
GP10_FN [3:0] = 0011
GP11_FN [3:0] = 0010
GP12_FN [3:0] = 0011
GP0_FN [3:0] = 0000
GP1_FN [3:0] = 0001
GP2_FN [3:0] = 0011
GP3_FN [3:0] = 0000
GP4_FN [3:0] = 0001
GP5_FN [3:0] = 0000
GP6_FN [3:0] = 0000
GP7_FN [3:0] = 0000
GP8_FN [3:0] = 0000
GP9_FN [3:0] = 0000
DEFAULT GPIO
FUNCTION
/WAKEUP
LINE_SW
PWR_ON
CH_IND
32kHz
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
/MR
Output, Open Drain
Output, Open Drain
Input, Active High
Input, Active High
Input, Active High
Input, Active High
Input, Active High
Input, Active High
Input, Active High
Input, Active Low
GP10_CFG =1
GP11_CFG =1
GP12_CFG =0
GP10_DIR = 0
GP11_DIR = 1
GP12_DIR = 0
Output, CMOS
GP0_CFG =1
GP1_CFG =0
GP2_CFG =1
GP3_CFG =1
GP4_CFG =1
GP5_CFG =1
GP6_CFG =1
GP7_CFG =1
GP8_CFG =1
GP9_CFG =1
GP0_DIR = 1
GP1_DIR = 1
GP2_DIR = 0
GP3_DIR = 1
GP4_DIR = 1
GP5_DIR = 1
GP6_DIR = 1
GP7_DIR = 1
GP8_DIR = 1
GP9_DIR = 1
DIRECTION
DEFAULT
(see note)
(see note)
DEFAULT PULL-UP /
PULL-DOWN
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
GP10_PD=0
GP10_PU=0
GP11_PD=0
GP11_PU=0
GP12_PD=0
GP12_PU=0
GP0_PD=0
GP0_PU=0
GP1_PD=0
GP1_PU=0
GP2_PD=0
GP2_PU=0
GP3_PD=0
GP3_PU=0
GP4_PD=0
GP4_PU=1
GP5_PD=0
GP5_PU=0
GP6_PD=0
GP6_PU=0
GP7_PD=0
GP7_PU=0
GP8_PD=0
GP8_PU=0
GP9_PD=0
GP9_PU=0
Pull-up
PD, June 2009, Rev 4.1
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
Debounce enabled
GP10_DB = 1
GP11_DB = 1
GP12_DB = 1
DE-BOUNCE
GP0_DB = 1
GP1_DB = 1
GP2_DB = 1
GP3_DB = 1
GP4_DB = 1
GP5_DB = 1
GP6_DB = 1
GP7_DB = 1
GP8_DB = 1
GP9_DB = 1
DEFAULT
WM8350
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