WM8326 Datasheet, PDF (178/255 Pages) Wolfson Microelectronics plc – Processor Power Management Subsystem

WM8326
REGISTER BIT
ADDRESS
LABEL
Register 403Eh GPIO7 Control
DEFAULT
DESCRIPTION
8 = DC-DC1 DVS Done
9 = DC-DC2 DVS Done
10 = External Power Enable1
11 = External Power Enable2
12 = System Supply Good (SYSOK)
13 = Converter Power Good (PWR_GOOD)
14 = External Power Clock (2MHz)
15 = Auxiliary Reset
Production Data
REFER TO
REGISTER
ADDRESS
R16447
(403Fh)
GPIO8
Control
BIT
LABEL
DEFAULT
DESCRIPTION
15 GP8_DIR
14:13 GP8_PULL
[1:0]
12 GP8_INT_MOD
E
11 GP8_PWR_DO
M
10 GP8_POL
9 GP8_OD
7 GP8_ENA
3:0 GP8_FN [3:0]
1
01
0
0
1
0
0
0000
GPIO8 pin direction
0 = Output
1 = Input
GPIO8 Pull-Up / Pull-Down configuration
00 = No pull resistor
01 = Pull-down enabled
10 = Pull-up enabled
11 = Reserved
GPIO8 Interrupt Mode
0 = GPIO interrupt is rising edge triggered (if
GP8_POL=1) or falling edge triggered (if GP8_POL=0)
1 = GPIO interrupt is triggered on rising and falling
edges
GPIO8 Power Domain select
0 = DBVDD
1 = PMICVDD (LDO12)
GPIO8 Polarity select
0 = Inverted (active low)
1 = Non-Inverted (active high)
GPIO8 Output pin configuration
0 = CMOS
1 = Open Drain
GPIO8 Enable control
0 = GPIO pin is tri-stated
1 = Normal operation
GPIO8 Pin Function
Input functions:
0 = GPIO input (long de-bounce)
1 = GPIO input
2 = Power On/Off request
3 = Sleep/Wake request
4 = Sleep/Wake request (long de-bounce)
5 = Sleep request
6 = Power On request
7 = Watchdog Reset input
8 = DVS1 input
9 = DVS2 input
10 = HW Enable1 input
11 = HW Enable2 input
12 = HW Control1 input
REFER TO
w
PD, June 2012, Rev 4.0
178