Intel 80C188EC User Manual page 154

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CLKIN
CLKOUT
UCS, LCS
GCS7:0, NPS
T0OUT
T1OUT
TXD1:0
HLDA, ALE
RXI1, TXI1
DMAI0
DMAI1
A19:16
AD15:0
S2:0, RD
WR, DEN
DT / R
LOCK
RESIN
RESOUT
At the second falling CLKOUT edge after the internal clocks resynchronize, the processor deas-
serts RESOUT. Bus activity starts seven CLKOUT periods after recognition of RESIN in the log-
ic 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.
A1132-0A
5-9

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