LSI 53C810A User Manual

Page 56

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3-14

PCI Functional Description

RTA

Received Target Abort (from Master)

12

A master device should set this bit whenever its
transaction is terminated with a target abort. All master
devices should implement this bit.

R

Reserved

11

DT[1:0]

DEVSEL/ Timing

[10:9]

These bits encode the timing of DEVSEL/.

These bits are read only and should indicate the slowest
time that a device asserts DEVSEL/ for any bus
command except Configuration Read and Configuration
Write. The LSI53C810A supports 0b01.

DPR

Data Parity Reported

8

This bit is set when the following three conditions are
met:

The bus agent asserted PERR/ itself or observed
PERR/ asserted.

The agent setting this bit acted as the bus master for
the operation in which the error occurred.

The Parity Error Response bit in the Command
register is set.

R

Reserved

[7:0]

0b00

Fast

0b01

Medium

0b10

Slow

0b11

Reserved

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