UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 657
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UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
- Current page: 657 of 759
- Download datasheet (3Mb)
RESET input
Non-maskable
interrupt request
(Only NMI pin
input possible/
except watchdog
timer
Maskable
interrupt request
(excluding macro
service request)
Macro service
request
Release Source
* 1. Interrupt mask bit in individual interrupt request source
2. Interrupt enable flag in program status word (PSW)
3. Pending interrupt requests are acknowledged when acknowledgment becomes possible.
4. Bit in interrupt mode control register (IMC)
5. Bit in macro service mode register of macro service control word in individual macro service request source
6. The HALT mode cannot be released by the watchdog timer.
*6
)
MK
0
0
1
0
1
*1
Table 22-2 HALT Mode Release and Operations after Release
IE
1
0
*2
• Non-maskable interrupt service program
• Low-priority non-maskable interrupt
• Service program for same request being
• High-priority non-maskable interrupt
• Interrupt service program not being
• Low-priority maskable interrupt service
• PRSL bit
• Same-priority maskable interrupt service
• High-priority interrupt service program
not being executed
service program being executed
executed
service program being executed
executed
program being executed
priority level 3 interrupt service program
program being executed
(If PRSL bit
execution of priority level 3 interrupt
service program)
being executed
CHAPTER 22 STANDBY FUNCTION
*4
cleared (0) during execution of
State on Release
*4
is cleared (0), excluding
—
—
—
—
—
Normal reset operation
Interrupt request acknowledgment
Execution of instruction after
MOV STBC, #byte instruction (interrupt
request that released HALT mode is
held pending
Interrupt request acknowledgment
Execution of instruction after
MOV STBC, #byte instruction (interrupt
request that released HALT mode is held
pending
HALT mode retained
Macro service processing execution
HALT mode retained
End condition not established
mode again
End condition established
If VCIE
If VCIE
maskable interrupt request
*3
Operation after Release
)
*3
*5
*5
)
= 1: HALT mode again
= 0: Same as release by
HALT
617
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