WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 222
![no-image](/images/no-image-200.jpg)
WM8351CGEB/RV
Manufacturer Part Number
WM8351CGEB/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8351CGEBRV.pdf
(330 pages)
- Current page: 222 of 330
- Download datasheet (4Mb)
REGISTER
REGISTER
WM8351
Register 04h System Control 2
w
ADDRESS
ADDRESS
Hibernate
R5 (05h)
System
BIT
BIT
2:0
15
7
6
5
4
3
2
1
REG_RESET_HIB_MODE
MEMRST_HIB_MODE
PCCOMP_HIB_MODE
HIB_STARTUP_SEQ
WDOG_HIB_MODE
WDOG_TO[2:0]
RST_HIB_MODE
IRQ_HIB_MODE
HIBERNATE
LABEL
LABEL
DEFAULT
DEFAULT
100
00
0
0
0
0
0
0
0
0
reset on time-out
11 = SYS_WDOG_TO interrupt on first time-out,
WKUP_WDOG_RST interrupt and System reset
on second time-out
Protected by security key. Reset by state
machine. Default held in metal mask.
Watchdog timeout (seconds)
The timer is reset to this value when a
HEARTBEAT signal edge is detected or the host
writes to the watchdog control register.
000 = 0.125s
… (time doubles with each step)
101 = 4s
11x = Reserved
Protected by security key.
Determines what state the chip should operate
in.
0 = Active state
1 = Hibernate state
The register bit defaults to 0, when a reset
happens
Reset by state machine. Default held in metal
mask.
Watchdog behaviour in HIBERNATE state
0 = WDOG disabled in Hibernate
1 = WDOG controlled by WDOG_MODE in
Hibernate
Direction to take when going from Hibernate
state to the Active state.
0 = Hibernate to Active without going through
startup state
1 = Hibernate to Active goes though startup
sequence
Action of the internal register reset signal
when going from Hibernate to Active.
0 = Do a register reset when leaving the
hibernate state.
1 = Do not do a register reset when leaving
the hibernate state
/RST pin state in hibernate mode:
0 = Asserted (low)
1 = Not asserted (high)
IRQ pin state in hibernate mode
0 = Normal operation
1 = Forced to indicate there is no IRQ
/MEMRST (Alternative GPIO function) pin
state in hibernate mode
0 = Asserted (low)
1 = Not asserted (high)
Function of the Hysteresis Comp in hibernate.
0 = Hyst Comp is not used in hibernate state
DESCRIPTION
DESCRIPTION
PD, April 2012, Rev 4.5
REFER TO
REFER TO
Production Data
222
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