WM8321
Production Data
REFER TO
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
Digital Comparator 3 threshold
DCMP3_THR
[11:0]
11:0
0000_0000
_0000
(12-bit unsigned binary number; coding is the same as
AUX_DATA)
Register 4033h Comparator 3
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16436
(4034h)
Comparator
4
DCMP4_SRC
[2:0]
Digital Comparator 4 source select
0 = Backup Battery voltage
1 = GPIO10
15:13
000
2 = GPIO11
3 = GPIO12
4 = Reserved
5 = Chip Temperature
6 = Reserved
7 = PVDD voltage
DCMP4_GT
Digital Comparator 4 interrupt control
0 = interrupt when less than threshold
1 = interrupt when greater than or equal to threshold
Digital Comparator 4 threshold
12
0
DCMP4_THR
[11:0]
11:0
0000_0000
_0000
(12-bit unsigned binary number; coding is the same as
AUX_DATA)
Register 4034h Comparator 4
REGISTER
ADDRESS
BIT
LABEL
GP1_DIR
DEFAULT
DESCRIPTION
REFER TO
R16440
(4038h)
GPIO1
Control
GPIO1 pin direction
0 = Output
15
1
1 = Input
GP1_PULL
[1:0]
GPIO1 Pull-Up / Pull-Down configuration
00 = No pull resistor
01 = Pull-down enabled
10 = Pull-up enabled
11 = Reserved
14:13
01
GP1_INT_MOD
E
GPIO1 Interrupt Mode
12
0
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
GP1_PWR_DO
M
GPIO1 Power Domain select
0 = DBVDD
11
10
9
0
1
0
0
1 = PMICVDD (LDO12)
GPIO1 Polarity select
0 = Inverted (active low)
1 = Non-Inverted (active high)
GPIO1 Output pin configuration
0 = CMOS
GP1_POL
GP1_OD
GP1_ENA
1 = Open Drain
GPIO1 Enable control
0 = GPIO pin is tri-stated
1 = Normal operation
7
PD, February 2012, Rev 4.0
168
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
