参数资料
型号: MSM82C59A-2JS
厂商: OKI ELECTRIC INDUSTRY CO LTD
元件分类: 中断控制器
英文描述: 80C85AH; 80C86A; 80C88A COMPATIBLE, INTERRUPT CONTROLLER, PQCC28
封装: PLASTIC, QFJ-28
文件页数: 29/29页
文件大小: 252K
代理商: MSM82C59A-2JS
9/29
Semiconductor
MSM82C59A-2RS/GS/JS
FEDL82C59A-2-03
SYSTEM INTERFACE
BASIC OPERATION DESCRIPTION
Data transfers between the 82C59A-2 internal registers and the data bus are listed below.
A0
Address Bus
Control Bus
D7 - D0
8 bits
WR
INTA
Data Bus
MSM82C59A-2
CS
RD
INT
Cascade
Address Bus
CAS0
CAS1
CAS2
SP/EN IR0 IR1 IR2 IR3 IR4 IR5 IR6 IR7
Slave
Program/Enable
Buffer
Interrupt Requests
1
0
A0
Function
1
0
1
D4
0
1
D3
0
1
0
RD
1
0
1
0
1
WR
0
1
0
IRR, ISR, or Poll Word Data Bus
IMR Data bus
Data Bus OCW2
Data Bus OCW3
Data Bus 1CW1
Data Bus OCW1, ICW2, ICW3, ICW4
Data Bus Set to High Impedance (when INTA = 1)
Combinations Prohibited
CS
0
1
Opearation
Read
Write
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