参数资料
型号: TMP86C847UG
厂商: Toshiba Corporation
英文描述: Zener Diode; Application: General; Pd (mW): 500; Vz (V): 15.7 to 16.5; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
中文描述: 8位微控制器
文件页数: 25/160页
文件大小: 1541K
代理商: TMP86C847UG
Page 17
TMP86C847UG
Figure 2-7 Level-sensitive Release Mode
Note 1: Even if the
STOP
pin input is low after warm-up start, the STOP mode is not restarted.
Note 2: In this case of changing to the level-sensitive mode from the edge-sensitive mode, the release
mode is not switched until a rising edge of the
STOP
pin input is detected.
(2)
Edge-sensitive release mode (RELM = “0”)
In this mode, STOP mode is released by a rising edge of the
STOP
pin input. This is used in appli-
cations where a relatively short program is executed repeatedly at periodic intervals. This periodic
signal (for example, a clock from a low-power consumption oscillator) is input to the
STOP
pin. In
the edge-sensitive release mode, STOP mode is started even when the
STOP
pin input is high level.
Do not use any STOP5 to STOP2 pin input for releasing STOP mode in edge-sensitive release mode.
Example 2 :Starting STOP mode from NORMAL mode with an INT5 interrupt.
PINT5:
TEST
(P2PRD). 0
; To reject noise, STOP mode does not start if
JRS
F, SINT5
port P20 is at high
LD
(SYSCR1), 01010000B
; Sets up the level-sensitive release mode.
DI
; IMF
0
SET
(SYSCR1). 7
; Starts STOP mode
SINT5:
RETI
Example :Starting STOP mode from NORMAL mode
DI
; IMF
0
LD
(SYSCR1), 10010000B
; Starts after specified to the edge-sensitive release mode
V
IH
NORMAL
operation
Warm up
STOP
operation
Confirm by program that the
STOP pin input is low and start
STOP mode.
Always released if the STOP
pin input is high.
STOP pin
XOUT pin
STOP mode is released by the hardware.
NORMAL
operation
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