AM186ES Advanced Micro Devices, AM186ES Datasheet - Page 123
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AM186ES
Manufacturer Part Number
AM186ES
Description
microcontrollers provide a low-cost/ high-performance solution for embedded system designers who wish to use the x86 architecture.
Manufacturer
Advanced Micro Devices
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7.4.9
Figure 7-24
Specific End-of-Interrupt Register
(EOI, Offset 22h)
(Slave Mode)
In slave mode, a write to the EOI register resets an in-service bit of a specific priority. The
user supplies a three-bit priority-level value that points to an in-service bit to be reset. The
command is executed by writing the correct value in the Specific EOI register at offset 22h.
Specific End-of-Interrupt Register
The EOI register is undefined on reset.
Bits 15–3: Reserved—Write as 0.
Bits 2–0: Interrupt Type (L2–L0)—Encoded value indicating the priority of the IS (interrupt
service) bit to be reset. Writes to these bits cause an EOI to be issued for the interrupt type
in slave mode. This is a write-only register.
15
0
0 0 0
Interrupt Control Unit
0
0 0 0
7
0
0 0
0 0
L2–L0
0
7-35