HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 97
HD6433044
Manufacturer Part Number
HD6433044
Description
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD6433044.pdf
(867 pages)
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5.1.3 Pin Configuration
Table 5-1 lists the interrupt pins.
Table 5-1 Interrupt Pins
Name
Nonmaskable interrupt
External interrupt request 5 to 0 IRQ
5.1.4 Register Configuration
Table 5-2 lists the registers of the interrupt controller.
Table 5-2 Interrupt Controller Registers
Address
H'FFF2
H'FFF4
H'FFF5
H'FFF6
H'FFF8
H'FFF9
Notes: 1. Lower 16 bits of the address.
2. Only 0 can be written, to clear flags.
*1
Name
System control register
IRQ sense control register
IRQ enable register
IRQ status register
Interrupt priority register A
Interrupt priority register B
Abbreviation
NMI
5
to IRQ
0
83
Input
I/O
Input
Abbreviation
SYSCR
ISCR
IER
ISR
IPRA
IPRB
Function
Nonmaskable interrupt, rising edge or
falling edge selectable
Maskable interrupts, falling edge or
level sensing selectable
R/W
R/W
R/W
R/W
R/(W)
R/W
R/W
*2
Initial Value
H'0B
H'00
H'00
H'00
H'00
H'00
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