AM186ES Advanced Micro Devices, AM186ES Datasheet - Page 113

• 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

7.3.11
Figure 7-14
Poll Status Register
(POLLST, Offset 26h)
(Master Mode)
The Poll Status register mirrors the current state of the Poll register. The Poll Status register
can be read without affecting the current interrupt request. But when the Poll register is
read, the current interrupt is acknowledged and the next interrupt takes its place in the Poll
register. This is a read-only register.
Poll Status Register
Bit 15: Interrupt Request (IREQ)—Set to 1 if an interrupt is pending. When this bit is set
to 1, the S4–S0 field contains valid data.
Bits 14–5: Reserved—Set to 0.
Bits 4–0: Poll Status (S4–S0)—Indicates the interrupt type of the highest priority pending
interrupt (see Table 7-1 on page 7-4).
IREQ
15
Interrupt Control Unit
Reserved
7
S4–S0
0
7-25