參數(shù)資料
型號(hào)： UPD750066CU(A)-XXX
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, MICROCONTROLLER, PDIP42
封裝： 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-42
文件頁數(shù)： 20/83頁
文件大小： 730K
代理商： UPD750066CU(A)-XXX
27
PD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
Data Sheet U10165EJ2V1DS
6.5 Basic Interval Timer/Watchdog Timer
The basic interval timer/watchdog timer has the following functions.
(a) Interval timer operation to generate a reference time interrupt
(b) Watchdog timer operation to detect a runaway of program and reset the CPU
(c) Selects and counts the wait time when the standby mode is released
(d) Reads the contents of counting
Figure 6-4. Basic Interval Timer/Watchdog Timer Block Diagram
From clock
generator
fX/25
fX/27
fX/29
fX/212
MPX
BTM3 BTM2 BTM1 BTM0 BTM
4
SET1Note
Internal bus
81
Basic interval timer
(8-bit frequency divider)
Clear
BT
Wait release signal
when standby is
released
Set
Clear
3
WDTM
SET1Note
Internal reset
signal
Vectored
interrupt
request
signal
BT
interrupt
request flag
IRQBT
Note Instruction execution
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