Pci Arbiter Interrupt Register (Pciaint) - Hitachi SH7751 Hardware Manual

22.2.24 PCI Arbiter Interrupt Register (PCIAINT)

Bit: 31
—
Initial value: 0
PCI-R/W: R
PP Bus-R/W: R
Bit: 23
—
Initial value: 0
PCI-R/W: R
PP Bus-R/W: R
Bit: 15
—
Initial value: 0
PCI-R/W: R
PP Bus-R/W: R
Bit: 7
—
Initial value: 0
PCI-R/W: R
PP Bus-R/W: R
Note: Cleared by writing WC:1. (Writing of 0 is ignored.)
The PCI arbiter interrupt register (PCIAINT) is a 32-bit register that stores the sources of PCI bus
errors occurring during transfers by another PCI master device when the PCIC is operating as the
host with the arbitration function. The register can be read from both the PP bus and the PCI bus.
Also, each interrupt detection bit can be cleared to its initial status (0) by writing 1 to it from either
the PP bus or the PCI bus. (Write clear)
The PCIINT register is initialized to H'00000000 at a power-on reset or software reset.
When an error is detected, the bit corresponding to the error type is set to 1. Each interrupt
detection bit can be cleared to its initial status (0) by writing 1 to it. (Write clear)
The error detection bits are set even when the interrupts are masked.
30 29 28
— —
0 0
R R
R R
22 21 20
— —
0 0
R R
R R
14 13 12
—
MST_BRKN TGT_BUSTO MST_BUSTO
0 0
R R/WC R/WC
R R/WC R/WC
6 5
— —
0 0
R R
R R
27 26
— —
0 0
R R
R R
19 18
— —
0 0
R R
R R
11 10
0 0
R/WC
R/WC
4 3
—
TGT_ABORT MST_ABORT
0 0
R R/WC R/WC
R R/WC R/WC
Rev. 3.0, 04/02, page 853 of 1064
25 24
— — —
0 0
R R
R R
17 16
— — —
0 0
R R
R R
9
— — —
0 0
R R
R R
2 1
DPERR_WT DPERR_RD
0 0
R/WC R/WC
R/WC R/WC
0
R
R
0
R
R
8
0
R
R
0
0