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5962-85016013A 参数 Datasheet PDF下载

5962-85016013A图片预览
型号: 5962-85016013A
PDF下载: 下载PDF文件 查看货源
内容描述: CMOS优先中断控制器 [CMOS Priority Interrupt Controller]
分类和应用: 中断控制器
文件页数/大小: 20 页 / 155 K
品牌: INTERSIL [ Intersil ]
 浏览型号5962-85016013A的Datasheet PDF文件第6页浏览型号5962-85016013A的Datasheet PDF文件第7页浏览型号5962-85016013A的Datasheet PDF文件第8页浏览型号5962-85016013A的Datasheet PDF文件第9页浏览型号5962-85016013A的Datasheet PDF文件第11页浏览型号5962-85016013A的Datasheet PDF文件第12页浏览型号5962-85016013A的Datasheet PDF文件第13页浏览型号5962-85016013A的Datasheet PDF文件第14页  
82C59A  
immediately before returning from the service routine, or if After the initialization sequence, IR0 has the highest priority  
the AEOI (Automatic End of Interrupt) bit is set, until the trail- and IR7 the lowest. Priorities can be changed, as will be  
ing edge of the last INTA. While the IS bit is set, all further explained in the rotating priority mode or via the set priority  
interrupts of the same or lower priority are inhibited, while command.  
higher levels will generate an interrupt (which will be  
acknowledged only if the microprocessor internal interrupt  
enable flip-flop has been re-enabled through software).  
OCW1  
A
D
D
D
D
D
D
D
D
0
6
5
4
3
2
1
0
7
1
M
M
M
M
M
M
M
M
7
6
5
4
3
2
1
0
Interrupt Mask  
1 = Mask set  
0 = Mask reset  
OCW2  
A
0
D
D
D
D
D
D
D
0
D
6
5
4
3
2
1
7
0
R
SL  
EOI  
0
0
L
L
L
0
2
1
IR LEVEL TO BE  
ACTED UPON  
0
0
0
1
1
0
2
0
1
3
1
1
4
0
0
5
1
0
6
0
1
7
1
1
0
0
0
0
1
1
1
1
Non-specific EOI command  
Specific EOI command  
0
0
1
1
0
1
0
0
1
1
1
0
End of interrupt  
Rotate on non-specific EOI command  
Rotate in automatic EOI mode (set)  
Rotate in automatic EOI mode (clear)  
Automatic rotation  
Specific rotation  
0
1
1
0
0
1
1
1
0
1
0
0
Rotate on specific EOI command  
Set priority command  
No operation  
L - L are used  
0
2
OCW3  
A
0
D
D
D
D
D
D
D
0
D
6
5
4
3
2
1
7
0
0
ESMM  
SMM  
0
1
P
RR  
RIS  
READ REGISTER COMMAND  
0
0
1
0
0
1
1
1
Read IS reg on  
next RD pulse  
Read IR reg on  
next RD pulse  
No Action  
1 = Poll command  
0 = No poll command  
SPECIAL MASK MODE  
0
0
1
0
0
1
1
1
Set special  
mask  
Reset special  
mask  
No Action  
FIGURE 8. 82C59A OPERATION COMMAND WORD FORMAT  
4-10  
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