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Aic user interface – Rainbow Electronics AT75C310 User Manual

Page 33

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AT75C310

33

AIC User Interface

Base Address: 0xFF030000

Note:

1. The reset value of this register depends on the level of the external IRQ lines. All other sources are cleared at reset.

Table 12. AIC Memory Map

Offset

Register Description

Register Name

Access

Reset State

0x000

Source Mode Register 0

AIC_SMR0

Read/write

0

0x004

Source Mode Register 1

AIC_SMR1

Read/write

0

Read/write

0

0x07C

Source Mode Register 31

AIC_SMR31

Read/write

0

0x080

Reserved

0x084

Reserved

Reserved

0x0FC

Reserved

0x100

IRQ Vector Register

AIC_IVR

Read-only

0

0x104

FIQ Vector Register

AIC_FVR

Read-only

0

0x108

Interrupt Status Register

AIC_ISR

Read-only

0

0x10C

Interrupt Pending Register

AIC_IPR

Read-only

(see Note 1)

0x110

Interrupt Mask Register

AIC_IMR

Read-only

0

0x114

Core Interrupt Status Register

AIC_CISR

Read-only

0

0x118

Reserved

0x11C

Reserved

0x120

Interrupt Enable Command Register

AIC_IECR

Write-only

0x124

Interrupt Disable Command Register

AIC_IDCR

Write-only

0x128

Interrupt Clear Command Register

AIC_ICCR

Write-only

0x12C

Interrupt Set Command Register

AIC_ISCR

Write-only

0x130

End of Interrupt Command Register

AIC_EOICR

Write-only