Z51F3220FNX Datasheet, PDF (95/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
10.12.5 Register Map
Table 10-3 Interrupt Register Map
Name
Address
Dir
IE
A8H
R/W
IE1
A9H
R/W
IE2
AAH
R/W
IE3
ABH
R/W
IP
B8H
R/W
IP1
F8H
R/W
EIFLAG0
C0H
R/W
EIPOL0L
A4H
R/W
EIPOL0H
A5H
R/W
EIFLAG1
A6H
R/W
EIPOL1
A7H
R/W
Default
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
Description
Interrupt Enable Register
Interrupt Enable Register 1
Interrupt Enable Register 2
Interrupt Enable Register 3
Interrupt Polarity Register
Interrupt Polarity Register 1
External Interrupt Flag 0 Register
External Interrupt Polarity 0 Low Register
External Interrupt Polarity 0 High Register
External Interrupt Flag 1 Register
External Interrupt Polarity 1 Register
10.13 Interrupt Register Description
The interrupt register is used for controlling interrupt functions. Also it has external interrupt control registers.
The interrupt register consists of interrupt enable register (IE), interrupt enable register 1 (IE1), interrupt enable
register 2 (IE2) and interrupt enable register 3 (IE3). For external interrupt, it consists of external interrupt flag 0
register (EIFLAG0), external interrupt polarity 0 high/low register (EIPOL0H/L), external interrupt flag 1 register
(EIFLAG1) and external interrupt polarity 1 register (EIPOL1).
PS029902-0212
PRELIMINARY
92