參數(shù)資料
型號: HD404638R
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 25/133頁
文件大?。?/td> 803K
代理商: HD404638R
HD404639R Series
25
Operating Modes
The MCU has five operating modes as shown in table 17. The operations in each mode are listed in tables
18 and 19. Transitions between operating modes are shown in figure 14.
Table 17 Operating Modes and Clock Status
Mode Name
Active
Standby
Stop
Watch
Subactive
INT
or timer A
interrupt request
from watch
mode when
LSON = 1
Activation
method
RESET
cancellation,
interrupt
request
STOPC
cancellation in
stop mode,
STOP/SBY
instruction in
subactive
mode (when
direct transfer
is selected)
SBY
instruction
STOP
instruction when
TMA3 = 0
STOP
instruction when
TMA3 = 1
STOP/SBY
instruction in
subactive mode
(when direct
transfer is not
selected)
Status
System
oscillator
OP
OP
Stopped
Stopped
Stopped
Subsystem
oscillator
OP
OP
OP
*
1
OP
OP
Cancellation
method
RESET input,
STOP/SBY
instruction
RESET
input,
interrupt
request
RESET input,
STOPC
input in
stop mode
RESET input,
INT
or timer A
interrupt request
RESET input,
STOP/SBY
instruction
Notes: OP implies in operation
1. Operating or stopping the oscillator can be selected by setting bit 3 of system clock select
register 1 (SSR1: $029).
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