CY82C693UB Cypress Semiconductor Corporation., CY82C693UB Datasheet - Page 92

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CY82C693UB

Manufacturer Part Number
CY82C693UB
Description
Hypercache Tm / Stand-alone Pci Peripheral Controller With Usb
Manufacturer
Cypress Semiconductor Corporation.
Datasheet

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ICW3: INTC1 Interrupt Initialization Command Word 3 (Write Only) - I/O Address=021H
ICW4: INTC1 Interrupt Initialization Command Word 4 (Write Only) - I/O Address=021H
Bit
7
6
5
4
3
2
1
0
Bit
7:5
4
3
2
1
0
Function
Slave Control IR7:
0:
1:
NOTE: Must be set to 0.
Slave Control IR6:
0:
1:
NOTE: Must be set to 0.
Slave Control IR5:
0:
1:
NOTE: Must be set to 0.
Slave Control IR4:
0:
1:
NOTE: Must be set to 0.
Slave Control IR3:
0:
1:
NOTE: Must be set to 0.
Slave Control IR2:
0:
1:
NOTE: This bit should be set to 1 for INTC2 to function properly.
Slave Control IR1:
0:
1:
NOTE: Must be set to 0.
Slave Control IR0:
0:
1:
NOTE: Must be set to 0.
Function
Reserved, Must be set to 000
Multiple Interrupt Control:
0:
1:
This bit (when set) allows INTC2 to fully nest interrupts, when Cascaded with Fixed Priority,
without being blocked by INTC1. Correct handling requires the CPU to issue non-specific
EOIs to INTC2 and check its ISR when exiting an interrupt service routine. If the ISR contains
zero, a non-specific EOI should be sent to INTC1. If the ISR contains anything other than
zero, no command should be issued to INTC1.
Buffered Mode:
0:
1:
Master/Slave stored in buffer. Must be set to 0.
Automatic End-of-Interrupt (AEOI) Control:
0:
1:
AEOI should not be enabled if the system supports fully nested interrupts unless this con-
troller is a Cascade Master.
Microprocessor Mode:
0:
1:
NOTE: This bit must be set to 1.
There is no slave controller connected to Interrupt Request 7 of this controller.
There is a slave controller connected to Interrupt Request 7 of this controller.
There is no slave controller connected to Interrupt Request 6 of this controller.
There is a slave controller connected to Interrupt Request 6 of this controller.
There is no slave controller connected to Interrupt Request 5 of this controller.
There is a slave controller connected to Interrupt Request 5 of this controller.
There is no slave controller connected to Interrupt Request 4 of this controller.
There is a slave controller connected to Interrupt Request 4 of this controller.
There is no slave controller connected to Interrupt Request 3 of this controller.
There is a slave controller connected to Interrupt Request 3 of this controller.
There is no slave controller connected to Interrupt Request 2 of this controller.
There is a slave controller connected to Interrupt Request 2 of this controller.
There is no slave controller connected to Interrupt Request 1 of this controller.
There is a slave controller connected to Interrupt Request 1 of this controller.
There is no slave controller connected to Interrupt Request 0 of this controller.
There is a slave controller connected to Interrupt Request 0 of this controller.
Disable Multiple Interrupt from the Same Channel
Enable Multiple Interrupt from the Same Channel
Not Buffered
Buffered
Disable AEOI
Enable AEOI
Not x86
x86
PRELIMINARY
92
CY82C693UB
Default
0
0
0
0
0
0
0
0
Default
000
0
0
0
0
0

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