CLKIN
CLKOUT
UCS, LCS
MCS3:0
PCS6:0
T0OUT
T1OUT
NPS
HLDA, ALE
A19/S6-A16
AD15:0
S2:0, RD
WR, DEN
DT/R
LOCK
RESIN
RESOUT
At the second falling CLKOUT edge after sampling RESIN inactive, the processor deasserts RE-
SOUT. Bus activity starts 6½ CLKOUT periods after recognition of RESIN in the logic high
state. If an alternate bus master asserts HOLD during reset, the processor immediately asserts
HLDA and will not prefetch instructions.
CLOCK GENERATION AND POWER MANAGEMENT
Figure 5-7. Warm Reset Waveform
Minimum RESIN
low time 4 CLKOUT
periods.
RESIN
high to
first bus
activity 7
CLKOUT
periods.
A1131-0A
5-9