AMD AMD5K86 - BREQ (Bus Request)

AMD~
1 8524BjO-Marl 996 AMDSflJ6 Processor Technical Reference Manual
5.2.12 SRDye (Burst Ready)
Summary
Sampled
Details
Signal Descriptions
Input
BRDYC is an identical copy of BRDY, except that BRDyC has
an internal pullup resistor whereas BRDY does not. In systems
that would otherwise place large capacitive loads on BRDY,
the BRDyC output can be used in place of BRDY to distribute
loads, thereby increasing response times.
BRDYC is sampled with the same timing as BRDY. See the
description of BRDY on page 5-42.
See the description of BRDY on page 5-42. Unlike BRDY,
BRDYC has an internal pullup resistor.
At the falling edge of RESET, the states of BRDYC and BUs:
CHK control the drive strength on the A21-A3 (not including
A31-A22), ADS, HI'T'M, and WIR signals. The drive strength is
weak for all states of BRDYC and BUscHK except when
BRDYC and BUSCHK are both Low, in which case the drive
strength is strong. The A31-A22 signals use the weak drive
strength at all times. ~ee the data sheet for details.
5-45