GMS81504 Datasheet, PDF (38/54 Pages) List of Unclassifed Manufacturers – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

GMS81504
HYUNDAI MicroElectronics
fXIN
MAX. 13 fOSC
8 fOSC
INTERRUPT
ACTIVE
INSTRUCTION EXECUTION
(INTERRUPT HOLDING)
INTERRUPT
PROCESSING
Figure 29. INT Pin Interrupt Timing
INTERRUPT
ROUTINE
PMR4
MSB
-
T1S
- EC0S -
LSB
- INT1S INT0S
ADDRESS: D0H
RESET VALUE: -0-0--00
0: R40
1: INT0 (EXTERNAL INTERRUPT 0)
0: R41
1: INT0 (EXTERNAL INTERRUPT 1)
0: R44
1: EC0 (EXTERNAL INPUT PIN FOR TIMER 0)
0: R46
1: T1O (TIMER 1 PULSE OUTPUT)
MSB
LSB
IEDS
-
-
-
- IED1H IED1L IED0H IED0L
ADDRESS: F8H
RESET VALUE: ----0000
INT1
INT0
Edge selection register
IEDxH.IEDxL
00: Reserved
01: Falling (1-to-0 transition)
10: Rising (0-to-1 transition)
11: Both (Rising & Falling)
Figure 30. PMR4 and IEDS Registers
38