upd78f0148m1gka1-9eu Renesas Electronics Corporation., upd78f0148m1gka1-9eu Datasheet - Page 451

• Manufacturer Part Number: upd78f0148m1gka1-9eu
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(b) Release by RESET input
Internal oscillation clock
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
Status of CPU
RESET signal
X1 input clock
Status of CPU
RESET signal
×: don’t care
Maskable interrupt
request
RESET input
2. f
Table 21-5. Operation in Response to Interrupt Request in STOP Mode
Release Source
XP
R
(Internal oscillation clock)
: Internal oscillation clock frequency
Operating mode
: X1 input clock oscillation frequency
(X1 input clock)
(2) When internal oscillation clock is used as CPU clock
Operating mode
Oscillates
Figure 21-7. STOP Mode Release by RESET Input
(1) When X1 input clock is used as CPU clock
instruction
STOP
instruction
CHAPTER 21 STANDBY FUNCTION
STOP
Oscillation stopped
MK××
Oscillates
STOP mode
User’s Manual U15947EJ3V1UD
0
0
0
0
0
1
−
STOP mode
PR××
0
0
1
1
1
×
−
Oscillation stabilization time (2
Oscillation
IE
0
1
0
×
1
×
×
stopped
period
Reset
Oscillation
stopped
period
Reset
ISP
Operation
×
×
1
0
1
×
×
stopped
(17/f
Operation
R
stopped
(17/f
)
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
Operating mode
(Internal oscillation clock)
11
/f
Operating mode
XP
to 2
16
/f
XP
)
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