參數(shù)資料
型號(hào): TMS320C240PQL
英文描述: 16-Bit Microcontroller
中文描述: 16位微控制器
文件頁(yè)數(shù): 50/105頁(yè)
文件大小: 1481K
代理商: TMS320C240PQL
TMS320C240, TMS320F240
DSP CONTROLLERS
SPRS042D – OCTOBER 1996 – REVISED NOVEMBER 1998
50
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
watchdog (WD) and real-time interrupt (RTI) module (continued)
55 + AA
Detector
D
CLR
System
Reset
Request
WDCNTR.7–0
Q
INT Request
(Level 1 Only)
/16384
/2048
/512
/256
111
110
101
100
011
010
000
001
CLR
8-Bit
Real-Time
Counter
7-Bit
Free-
Running
Counter
/128
/64
/32
/16
/8
/4
/2
111
110
101
100
011
010
001
000
Any
Write
16-kHz
WDCLK
System
Reset
System Reset
CLR
CLR
One-Cycle
Delay
Watchdog
Reset Key
Register
8-Bit Watchdog
Counter
CLR
RTICNTR.7–0
D
CLR
Q
INT Acknowledge
Bad WDCR Key
Good Key
Bad Key
WDPS
WDCR.2–0
2 1 0
WDKEY.7–0
WDCHK2–0
WDCR.5–3
WDCR.7
WD FLAG
Reset Flag
RTIPS
RTICR.2–0
2 1 0
RTICR.7
RTI FLAG
Clear
RTI Flag
RTICR.7
RTI FLAG
Read
RTI Flag
RTICR.7
RTI FLAG
Clear
RTI Flag
RTICR.6
RTI ENA
PS/257
WDDIS
WDCR.6
1 0 1
(Constant
Value)
3
3
Writing to bits WDCR.5–3 with anything but the correct pattern (101) generates a system reset.
Figure 15. WD/RTI Module Block Diagram
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