參數(shù)資料
型號(hào): UPD75402
廠商: NEC Corp.
英文描述: 4 BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁數(shù): 17/48頁
文件大?。?/td> 515K
代理商: UPD75402
17
μ
PD75402A(A)
5.4 BASIC INTERVAL TIMER
The basic interval timer provides the following functions:
Interval timer operation that generates a reference time interrupt
Can be used as a watchdog timer for detecting program crashes
Reading the count value
Fig. 5-3 Configuration of the Basic Interval Timer
From the
clock
generator
f
XX
/2
5
f
XX
/2
9
MPX
BTM3
BTM2
1
1
BTM
4
8
Internal bus
Clear
Set
BT
Basic interval timer
(8-bit frequency divider)
BT
interrupt
request flag
IRQBT
Vectored
interrupt
request
signal
Clear
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