參數(shù)資料
型號： UPD754304GS(A)-XXX
廠商： NEC Corp.
英文描述： 4-Bit Microcontroller
中文描述： 4位微控制器
文件頁數(shù)： 23/74頁
文件大小： 316K
代理商： UPD754304GS(A)-XXX
μ
PD754302, 754304, 754302(A), 754304(A)
23
6.4 Basic Interval Timer/Watchdog Timer
The basic interval timer/watchdog timer has the following functions.
Interval timer operation to generate a reference time interrupt
Watchdog timer operation to detect a runaway of program and reset the CPU
Selects and counts the wait time when the standby mode is released
Reads the contents of counting
Figure 6-3. Basic Interval Timer/Watchdog Timer Block Diagram
From clock
generator
f
X
/2
5
f
X
/2
7
f
X
/2
9
f
X
/2
12
MPX
BTM3 BTM2 BTM1 BTM0 BTM
4
SET1
Note
Internal bus
8
1
Basic interval timer
(8-bit frequency divider)
Clear
BT
Wait release signal
when standby is
released.
Set
Clear
3
WDTM
SET1
Note
Internal reset
signal
Vectored
interrupt
request signal
BT
interrupt
request flag
IRQBT
Note
Instruction execution
相關(guān)PDF資料
PDF描述
UPD754304GS-XXX 4-Bit Microcontroller
UPD754304GS 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
UPD754302A 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
UPD754304 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
UPD754302GSA 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
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