MC68LC040RC25A Datasheet, PDF (384/442 Pages) Freescale Semiconductor, Inc – M68040 Users Manual

Freescale Semiconductor, Inc.
MC68EC040 REV2.3 (01/31/2000)
BCLK
+5V
V_CC
0V
RSTI
BUS
SIGNALS
TS
TIP
BR
BG
BB
MI
1 ≥ 10
CLOCKS
2
128
CLOCKS CLOCKS
Undefined
Figure B-5. MC68EC040 Initial Power-On Reset Timing
BCLK
RSTI
BUS
SIGNALS
TS
TIP
BR
BG
BB
MI
1 ≥ 10
CLOCKS
2
128
CLOCKS CLOCKS
Figure B-6. MC68EC040 Normal Reset Timing
When a RESET instruction is executed, the processor drives the reset out (RSTO) signal for
512 BCLK cycles. In this case, the processor resets the external devices of the system, and
the internal registers of the processor are unaffected. The external devices connected to
B-8
M68040 USER’S MANUAL
MOTOROLA
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