UPD78F0138 NEC, UPD78F0138 Datasheet - Page 388
UPD78F0138
Manufacturer Part Number
UPD78F0138
Description
(UPD78xxxx) 8-Bit Single-Chip Microcontrollers
Manufacturer
NEC
Datasheet
1.UPD78F0138.pdf
(558 pages)
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Remark f
Subsystem clock
RESET signal
Status of CPU
×: don’t care
Maskable interrupt
request
RESET input
R
: Ring-OSC clock oscillation frequency
Table 19-3. Operation in Response to Interrupt Request in HALT Mode
Release Source
Subsystem
Figure 19-4. HALT Mode Release by RESET Input (2/2)
Operating
clock
mode
(3) When subsystem clock is used as CPU clock
HALT instruction
CHAPTER 19 STANDBY FUNCTION
MK××
User’s Manual U16228EJ2V0UD
0
0
0
0
0
1
−
HALT mode
PR××
0
0
1
1
1
×
−
IE
0
1
0
×
1
×
×
Oscillates
period
Reset
ISP
×
×
1
0
1
×
×
Operation
stopped
(17/f
R
Next address
instruction execution
Interrupt servicing
execution
Next address
instruction execution
Interrupt servicing
execution
HALT mode held
Reset processing
)
Operation
(Ring-OSC clock)
Operating mode
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