參數資料
型號: HCD40C4344R
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-series microcomputer(4位單片微計算機)
中文描述: 4位HMCS400系列微電腦(4位單片微計算機)
文件頁數: 32/100頁
文件大?。?/td> 610K
代理商: HCD40C4344R
HD404344R Series/HD404394 Series
32
Operating Modes
The MCU has three operating modes as shown in table 14. The transitions between the operating modes are
shown in figure 11.
Table 14
Operations in Each Operating Mode
Function
Active Mode
Standby Mode
Stop Mode
System oscillator
OP
OP
Stopped
CPU
OP
Retained
Reset
RAM
OP
Retained
Retained
Timers B, C
OP
OP
Reset
Serial
OP
OP
Reset
A/D
OP
OP
Reset
I/O
Notes: OP implies in operation.
*
Since input/output circuits are in operation, the current will flow in/out depending on the pin status
in standby mode. Note that this current is in addition to the standby mode dissipation current.
OP
Retained
*
Reset
Active
mode
Standby
mode
MCU
reset
Stop
mode
RESET
= 1
RESET
= 0
RESET
= 0
RESET
= 0
STOP
instruction
SBY
instruction
Interrupt
request
Figure 11 MCU Status Transition
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