Manual

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 –