WM8310 Datasheet, PDF (268/291 Pages) Wolfson Microelectronics plc – Processor Power Management Subsystem

WM8310
REGISTER
ADDRESS
R30746
(781Ah)
GPIO1 OTP
Control
BIT
LABEL
DEFAULT
DESCRIPTION
Pre-Production
REFER TO
15
GP1_DIR
14:13
GP1_PULL
[1:0]
12 GP1_INT_MOD
E
11 GP1_PWR_DO
M
10
GP1_POL
9
GP1_OD
8
GP1_ENA
7:4 GP1_FN [3:0]
1
01
0
0
1
0
0
0000
GPIO1 pin direction
0 = Output
1 = Input
GPIO1 Pull-Up / Pull-Down configuration
00 = No pull resistor
01 = Pull-down enabled
10 = Pull-up enabled
11 = Reserved
GPIO1 Interrupt Mode
0 = GPIO interrupt is rising edge triggered (if
GP1_POL=1) or falling edge triggered (if GP1_POL=0)
1 = GPIO interrupt is triggered on rising and falling
edges
GPIO1 Power Domain select
0 = DBVDD
1 = PMICVDD (LDO12)
GPIO1 Polarity select
0 = Inverted (active low)
1 = Non-Inverted (active high)
GPIO1 Output pin configuration
0 = CMOS
1 = Open Drain
GPIO1 Enable control
0 = GPIO pin is tri-stated
1 = Normal operation
GPIO1 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
13 = HW Control2 input
14 = HW Control1 input (long de-bounce)
15 = HW Control2 input (long de-bounce)
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Output functions:
0 = GPIO output
1 = 32.768kHz oscillator output
2 = ON state
3 = SLEEP state
4 = Power State Change
5 = Reserved
6 = Reserved
7 = Reserved
PP, May 2012, Rev 3.1
268