7.2.7 Watchdog Control and Status Register (CPLD_WDCSR)
NOTE
For more information on WDCSR register, refer to MAX6370
datasheet.
Address: 0h base + 12h offset = 12h
Bit
0
1
2
3
4
5
6
7
Read
WD_CFG[2:0]
Reserved
WD_EN
Write
Reset
0
0
0
0
0
1
1
1
CPLD_WDCSR field descriptions
Field
Description
0–2
WD_CFG[2:0]
Watchdog configuration.
000
Watchdog timeout is 1 ms
001
Watchdog timeout is 10 ms
010
Watchdog timeout is 30 ms
011
Watchdog timeout is disabled
100
Watchdog timeout is 100 ms
101
Watchdog timeout is 1 s
110
Watchdog timeout is 10 s
111
Watchdog timeout is 60 s
3–6
-
This field is reserved.
Reserved.
7
WD_EN
Watchdog enable.
0
Watchdog is disabled
1
Watchdog is enabled
7.2.8 Watchdog Kick Register (CPLD_WDKICK)
Address: 0h base + 13h offset = 13h
Bit
0
1
2
3
4
5
6
7
Read
Write
WD_KICK
Reset
x*
x*
x*
x*
x*
x*
x*
x*
* Notes:
x depends on actual board setting.x = Undefined at reset.
•
CPLD Memory Map/Register Definition
C29x PCIe Card User Guide, Rev. 0, 10/2013
48
Freescale Semiconductor, Inc.
Содержание C29x
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