MPC8280 datasheet(344/1386 Pages) FREESCALE

344 / 1386 page

PCI Bridge

MPC8280 PowerQUICC II Family Reference Manual, Rev. 1

9-36

Freescale Semiconductor

Figure 9-23. Error Status Register (ESR)

Table 9-10 describes ESR fields.

Field

—

Reset

0000_0000_0000_0000

R/W

Addr

0x10886

Field

—

I2O_

DBMC

NMI

IRA

I2O_

IPQO

I2O_

OFQO

PERR_

PCI_

SERR

TAR_

ABT

NO_

RSP

DATA_

PAR_

DATA_

PAR_

ADDR_

PAR

Reset

0000_0000_0000_0000

R/W

Addr

0x10884

Table 9-10. ESR Field Descriptions

Bits

Name

Description

31–13

—

Reserved, should be cleared.

I2O_DBMC

I2O DoorBell Machine Check. When a PCI-mastered write sets IDBR[31], a

machine check is sent to the local processor and the event is reported in

ESR[I2O_DBMC].

This bit is also set in the following cases:

• An overflow condition in the inbound posted I2O queue

• An overflow condition in the outbound free I2O queue.

These two interrupts can be masked in the I2O unit.

NMI

General error/interrupt indication. In host mode, this bit is set when a 60x bus

write transaction initiated by the PCI bridge is terminated by the assertion of

TEA. In agent mode, this bit is set when the GPCR[MCP2PCI] bit is set and an

internal machine check interrupt (MCP) is issued by one of the MPC8280’s MCP

sources.

Machine check and interrupt assertion is determined by ECR[11].

The reset value of ECR[11], logic zero, indicates that an interrupt will be asserted

if ESR[NMI] is set (and enabled per EMR[11]).

IRA

Illegal register access with incorrect size.

I2O_IPQO

I2O inbound post queue overflow.

I2O_OFQO

I2O outbound free queue overflow.

PCI_PERR_WR

PCI parity error received on a write.

PCI_PERR_RD

PCI parity error received on a read.

PCI_SERR

PCI SERR received.

PCI_TAR_ABT

PCI target abort

MPC8280 bảng dữ liệu(PDF) 344 Page - Freescale Semiconductor, Inc

MPC8280 bảng dữ liệu(HTML) 344 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL