參數(shù)資料
型號: HD404652
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機(jī)
文件頁數(shù): 27/109頁
文件大小: 430K
代理商: HD404652
HD404654 Series
27
Stop Mode Cancellation by
STOPC
:
The MCU enters active mode from stop mode by inputting
STOPC
as well as by
RESET
. In either case, the MCU starts instruction execution from the starting address
(address 0) of the program. However, the value of the RAM enable flag (RAME: $021, bit 3) differs
between cancellation by
STOPC
and by
RESET
. When stop mode is cancelled by
RESET
, RAME = 0;
when cancelled by
STOPC
, RAME = 1.
RESET
can cancel all modes, but
STOPC
is valid only in stop
mode;
STOPC
input is ignored in other modes. Therefore, when the program requires to confirm that stop
mode has been cancelled by
STOPC
(for example, when the RAM contents before entering stop mode are
used after transition to active mode), execute the TEST instruction on the RAM enable flag (RAME) at the
beginning of the program.
Stop mode
Oscillator
Internal
clock
STOP instruction execution
t
res
t
RC
(stabilization period)
t
res
STOPC
or
RESET
Figure 13 Timing of Stop Mode Cancellation
相關(guān)PDF資料
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HD404652H RES T 0.2E 5W 1%
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HD404652H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404652S 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404654 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404654H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404654S 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer