參數(shù)資料
型號： TMP320F2810GHHMEP
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號處理
英文描述： Digital Signal Processors
中文描述： 數(shù)字信號處理器
文件頁數(shù)： 52/103頁
文件大?。?/td> 1341K
代理商： TMP320F2810GHHMEP
TMS320F2810, TMS320F2812
DIGITAL SIGNAL PROCESSORS
SPRS174B
–
APRIL 2001
–
REVISED SEPTEMBER 2001
52
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
–
1443
watchdog block (continued)
Table 37. WDCNTR Register Bit Definitions
BIT(S)
NAME
TYPE
RESET
DESCRIPTION
7:0
WDCNTR
R/W
0:0
These bits contain the current value of the WD counter. The 8-bit
counter continually increments at the WDCLK rate. If the counter
overflows, then the watchdog initiates a reset. If the WDKEY register
is written with a valid combination, then the counter is reset to zero.
15:8
reserved
R=0
0:0
Table 38. WDKEY Register Bit Definitions
BIT(S)
NAME
TYPE
RESET
DESCRIPTION
7:0
WDKEY
W/R=0
0:0
Writing 0x55 followed by 0xAA will cause the WDCNTR bits to be
cleared. Writing any other value will cause an immediate watchdog
reset to be generated.
15:8
reserved
R=0
0:0
Table 39. WDCR Register Bit Definitions
BIT(S)
NAME
TYPE
RESET
DESCRIPTION
2:0
WDPS(2:0)
R/W
0:0
These bits configure the watchdog counter clock (WDCLK) rate relative
to OSCCLK/512:
000
WDCLK = OSCCLK/512/1
001
WDCLK = OSCCLK/512/1
010
WDCLK = OSCCLK/512/2
011
WDCLK = OSCCLK/512/4
100
WDCLK = OSCCLK/512/8
101
WDCLK = OSCCLK/512/16
110
WDCLK = OSCCLK/512/32
111
WDCLK = OSCCLK/512/64
5:3
WDCHK(2:0)
W/R=0
0:0
The user must ALWAYS write
“
1,0,1
”
to these bits whenever a write to
this register is performed. Writing any other value will cause an
immediate reset to the core (if WD enabled).
6
WDDIS
R/W
0
Writing a 1 to this bit will disable the watchdog module. Writing a 0 will
enable the module. This bit can only be modified if the WDOVERRIDE
bit in the SCSR2 register is set to 1. On reset, the watchdog module is
enabled.
7
WDFLAG
R/W=1
Watchdog reset status flag bit. This bit, if set, indicates a watchdog
reset (WDRST) generated the reset condition. If 0, then it was an
external device or power-up reset condition. This bit remains latched
until the user writes a 1 to clear the condition. Writes of 0 will be ignored.
15:8
reserved
R=0
0:0
P
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