WATCHDOG
20.4.4.1.2 WDT_WDSC Register (offset = 10h) [reset = 10h]
WDT_WDSC is shown in
and described in
.
The Watchdog System Control Register controls the various parameters of the L4 interface.
Figure 20-100. WDT_WDSC Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
Reserved
EMUFREE
IDLEMODE
Reserved
SOFTRESET
Reserved
R-0h
R/W-0h
R/W-2h
R-0h
R/W-0h
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 20-113. WDT_WDSC Register Field Descriptions
Bit
Field
Type
Reset
Description
31-6
Reserved
R
0h
5
EMUFREE
R/W
0h
Emulation mode
0x0 = Timer counter frozen in emulation
0x1 = Timer counter free-running in emulation
4-3
IDLEMODE
R/W
2h
Configuration of the local target state management mode.By
definition, target can handle read/write transaction as long as it is out
of IDLE state.
0x0 = Force-idle mode: local target's idle state follows
(acknowledges) the system's idle requests unconditionally, i.e.
regardless of the IP module's internal requirements. Backup mode,
for debug only.
0x1 = No-idle mode: local target never enters idle state.Backup
mode, for debug only.
0x2 = Smart-idle mode: local target's idle state eventually follows
(acknowledges) the system's idle requests, depending on the IP
module's internal requirements. IP module shall not generate (IRQ-
or DMA-request-related) wakeup events.
0x3 = Smart-idle wakeup-capable mode: local target's idle state
eventually follows (acknowledges) the system's idle requests,
depending on the IP module's internal requirements. IP module may
generate (IRQ- or DMA-request-related) wakeup events when in idle
state.
2
Reserved
R
0h
1
SOFTRESET
R/W
0h
Software reset.
(Optional)
0x0x0(W) = No action
0x0x0(R) = Reset done, no pending action
0x0x1(W) = Initiate software reset.
0x0x1(R) = Reset (software or other) ongoing
0
Reserved
R
0h
3683
SPRUH73H – October 2011 – Revised April 2013
Timers
Copyright © 2011–2013, Texas Instruments Incorporated