SH7751 Datasheet, PDF (998/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

22. PCI Controller (PCIC)
22.2.24 PCI Arbiter Interrupt Register (PCIAINT)
Bit: 31
30
29
28
27
26
25
24
—
—
—
—
—
—
—
—
Initial value:
0
0
0
0
0
0
0
0
PCI-R/W: R
R
R
R
R
R
R
R
PP Bus-R/W: R
R
R
R
R
R
R
R
Bit: 23
22
21
20
19
18
17
16
—
—
—
—
—
—
—
—
Initial value:
0
0
0
0
0
0
0
0
PCI-R/W: R
R
R
R
R
R
R
R
PP Bus-R/W: R
R
R
R
R
R
R
R
Bit: 15
14
13
12
11
10
9
8
—
—
MST_BRKN TGT_BUSTO MST_BUSTO
—
—
—
Initial value:
0
0
0
0
0
0
0
0
PCI-R/W: R
R
R/WC R/WC R/WC
R
R
R
PP Bus-R/W: R
R
R/WC R/WC R/WC
R
R
R
Bit:
7
6
5
4
3
2
1
0
—
—
—
—
TGT_ABORT MST_ABORT DPERR_WT DPERR_RD
Initial value:
0
0
0
0
0
0
0
0
PCI-R/W: R
R
R
R
R/WC R/WC R/WC R/WC
PP Bus-R/W: R
R
R
R
R/WC R/WC R/WC R/WC
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 PCIAINT 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)
Rev.4.00 Oct. 10, 2008 Page 900 of 1122
REJ09B0370-0400