CHAPTER 19 STANDBY FUNCTION
User’s Manual U16899EJ2V0UD
384
Figure 19-4. HALT Mode Release by RESET Input (2/2)
(3) When subsystem clock is used as CPU clock
HALT instruction
RESET signal
Subsystem clock
Operating
mode
HALT mode
Reset
period
Operation
stopped
Operating mode
Oscillates
Status of CPU
(Ring-OSC clock)
(17/f
R
)
Subsystem
clock
Remark f
R
: Ring-OSC clock oscillation frequency
Table 19-3. Operation in Response to Interrupt Request in HALT Mode
Release Source
MK
××
PR
××
IE ISP
Operation
0 0 0
×
Next address
instruction execution
0 0 1
×
Interrupt servicing
execution
0 1 0 1
0 1
×
0
Next address
instruction execution
0 1 1 1
Interrupt servicing
execution
Maskable interrupt
request
1
×
×
×
HALT mode held
RESET input
−
−
×
×
Reset processing
×
: don’t care
Содержание MuPD78F0132H
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