Pci Error Bus Master Data Register (Pcibmlr) - Hitachi SH7751 Hardware Manual

Bit 11—Master Bus Timeout Interrupt Mask (MST_BUSTO)
Bits 10 to 4—Reserved: These bits always return 0 when read. Always write 0 to these bits when
writing.
Bit 3—Target Abort Interrupt Mask (TGT_ABORT)
Bit 2—Master Abort interrupt Mask (MST_ABORT)
Bit 1—Read Data Parity Error Interrupt Mask (DPERR_WT)
Bit 0—Write Data Parity Error Interrupt Mask (DPERR_RD)

22.2.26 PCI Error Bus Master Data Register (PCIBMLR)

Bit: 31
—
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
The PCI error bus master data register (PCIBMLR) stores the device number of the bus master at
the time an error occurred in PCI transfer by another PCI device when the PCIC was operating as
the host with the arbitration function. It is a 32-bit register than can be read from both the PP bus
and PCI bus.
The PCIINTM register is initialized to H'00000000 at a power-on reset or software reset. A valid
value is retained only when one of the PCIAINT register bits is set to 1.
The bus master data holding circuit can only store data for one master. For this reason, no bus
master data is stored for any second or subsequent errors if errors occur consecutively.
Bits 31 to 5—Reserved: These bits always return 0 when read. Always write 0 to these bits when
writing.
Bit 4—REQ4 Error (REQ4ID): Error occurred when device 4 (REQ4) was bus master.
Rev. 3.0, 04/02, page 856 of 1064
30 29 . . .
— — . . .
0 0 . . .
R R . . .
R R . . .
6 5
— — REQ4ID REQ3ID REQ2ID REQ1ID REQ0ID
0 0
R R
R R
11 10
—
0
R
R
4 3
— —
R R
R R
9
— — —
0 0
R R
R R
2 1
— — —
R R
R R
8
0
R
R
0
R
R