MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 131

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

9.4.1 External Pin Reset
MC68HC708AS48
MOTOROLA
CGMOUT
RST
IAB
—
PC
Rev. 4.0
Pulling the asynchronous RST pin low halts all processing. The PIN bit
of the SIM reset status register (SRSR) is set as long as RST is held low
for a minimum of 67 CGMXCLK cycles, assuming that neither the POR
nor the LVI was the source of the reset. See
Figure 9-4
Figure 9-4. External Reset Timing
System Integration Module (SIM)
Reset Type
All Others
shows the relative timing.
POR/LVI
Table 9-2. PIN Bit Set Timing
Number of Cycles Required to Set PIN
VECT H
4163 (4096 + 64 + 3)
VECT L
67 (64 + 3)
System Integration Module (SIM)
Table 9-2
Reset and System Initialization
Advance Information
for details.
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