upd78f0124hgba1-8et-a Renesas Electronics Corporation., upd78f0124hgba1-8et-a Datasheet - Page 352
upd78f0124hgba1-8et-a
Manufacturer Part Number
upd78f0124hgba1-8et-a
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0124HGBA1-8ET-A.pdf
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352
(b) Release by RESET input
Internal oscillation
When the RESET signal is input, STOP mode is released and a reset operation is performed after the
oscillation stabilization time has elapsed.
Remarks 1. f
RESET signal
Status of CPU
system clock
RESET signal
Status of CPU
High-speed
(High-speed system clock)
×: don’t care
Maskable interrupt
request
RESET input
(internal oscillation clock)
2. f
clock
Table 18-5. Operation in Response to Interrupt Request in STOP Mode
Release Source
XP
R
: Internal oscillation clock oscillation frequency
Operating mode
: High-speed system clock oscillation frequency
Operating mode
(1) When high-speed system clock is used as CPU clock
(2) When internal oscillation clock is used as CPU clock
Oscillates
Figure 18-7. STOP Mode Release by RESET Input
instruction
instruction
STOP
STOP
CHAPTER 18 STANDBY FUNCTION
Oscillates
Oscillation stopped
MK××
STOP mode
User’s Manual U16962EJ3V0UD
0
0
0
0
0
1
−
STOP mode
PR××
0
0
1
1
1
×
−
Oscillation stabilization time (2
IE
Oscillation
0
1
0
×
1
×
×
stopped
period
Reset
Oscillation
stopped
period
Reset
ISP
Operation
×
×
1
0
1
×
×
stopped
(17/f
Operation
stopped
(17/f
R
)
Oscillates
Next address
instruction execution
Interrupt servicing
execution
Next address
instruction execution
Interrupt servicing
execution
STOP mode held
Reset processing
R
)
Oscillates
(internal oscillation clock)
Operation
(internal oscillation clock)
Operating mode
11
Operating mode
/f
XP
to 2
16
/f
XP
)
Note
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