UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 666
UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
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22.4.2 STOP Mode Release
the STOP mode is shown in Figure 22-6.
626
RESET input
NMI pin input
INTP4/INTP5
pin input
STOP mode is released by NMI input, INTP4 input, INTP5 input, and RESET input.
A summary of the release source and the operations after release is shown in Table 22-5. The operations after releasing
* 1. Interrupt mask bit in individual interrupt request source
Release
Source
2. Macro service enable flag in individual interrupt request source
3. Interrupt enable flag in program status word (PSW)
4. Pending interrupt requests are acknowledged when acknowledgment becomes possible.
5. Bit in interrupt mode control register (IMC)
MK
0
0
1
*1
ISM
0
0
0
1
Table 22-5 STOP Mode Release and Operations after Release
*2
IE
1
0
*3
• Non-maskable interrupt service
• Low-priority non-maskable interrupt
• NMI pin input service program being
• High-priority non-maskable interrupt
• Interrupt service program not being
• Low-priority maskable interrupt service
• PRSL bit
• Same-priority maskable interrupt
• High-priority interrupt service program
program not being executed
service program being executed
executed
service program being executed
executed
program being executed
of priority level 3 interrupt service
program
service program being executed
(If PRSL bit
execution of priority level 3 interrupt
service program)
being executed
CHAPTER 22 STANDBY FUNCTION
*5
State after Release
cleared (0) during execution
*5
is cleared (0), excluding
—
—
—
Normal reset operation
Interrupt request acknowledgment
Execution of instruction after
MOV STBC, #byte instruction (interrupt
request that released STOP mode is held
pending
Interrupt request acknowledgment
Execution of instruction after
MOV STBC, #byte instruction (interrupt
request that released STOP mode is held
pending
STOP mode retained
*4
*4
Operation after Release
)
)
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