r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 573

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

(12) PCI Arbiter Bus Master Information Register (PCIBMIR)
In host bridge mode, this register records when the interrupt is invoked by PCIAINT.
When multiple interrupts occur, only the first source is registered.
When an interrupt is masked, the source is registered in corresponding bit (set to 1), however, an
interrupt occurs.
Initial value:
Initial value:
Bit
31 to 5
4
3
2
1
0
PCI R/W:
PCI R/W:
SH R/W:
SH R/W:
Bit:
Bit:
Bit Name

REQ4BME Undefined SH: R
REQ3BME Undefined SH: R
REQ2BME Undefined SH: R
REQ1BME Undefined SH: R
REQ0BME Undefined SH: R
31
15
—
—
R
R
R
R
0
0
30
14
—
—
R
R
R
R
0
0
Initial
Value
All 0
29
13
—
—
R
R
R
R
0
0
28
12
—
—
R
R
R
R
0
0
R/W
SH: R
PCI: R
PCI: R
PCI: R
PCI: R
PCI: R
PCI: R
27
11
—
—
R
R
R
R
0
0
26
10
—
—
R
R
R
R
0
0
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
REQ4 Error
An error occurs when the PCIC functions as a bus
master.
REQ3 Error
An error occurs when device 3 (REQ3) functions as a
bus master
REQ2 Error
An error occurs when device 2 (REQ2) functions as a
bus master
REQ1 Error
An error occurs when device 1 (REQ1) functions as a
bus master
REQ0 Error
An error occurs when device 0 (REQ0) functions as a
bus master
25
—
—
R
R
R
R
0
9
0
24
—
—
R
R
R
R
0
8
0
23
—
—
R
R
R
R
0
7
0
Rev. 1.00 Oct. 01, 2007 Page 507 of 1956
22
—
—
R
R
R
R
0
6
0
21
—
—
R
R
R
R
0
5
0
Section 13 PCI Controller (PCIC)
REQ4
BME
20
—
—
R
R
R
R
0
4
REQ3
BME
19
—
—
R
R
R
R
0
3
REJ09B0256-0100
REQ2
BME
18
—
—
R
R
R
R
0
2
REQ1
BME
17
—
—
R
R
R
R
0
1
REQ0
BME
16
—
—
R
R
R
R
0
0