CY28442 Cypress Semiconductor, CY28442 Datasheet - Page 13

• Manufacturer Part Number: CY28442
• Description: Clock Generator
• Manufacturer: Cypress Semiconductor

ADVANCE INFORMATION
CY28442
CPU_STP#
CPUT
CPUC
Figure 6. CPU_STP# Assertion Waveform
CPU_STP# Deassertion
The deassertion of the CPU_STP# signal will cause all CPU
outputs that were stopped to resume normal operation in a
synchronous manner. Synchronous manner meaning that no
short or stretched clock pulses will be produce when the clock
resumes. The maximum latency from the deassertion to active
outputs is no more than two CPU clock cycles.
CPU_STP#
CPUT
CPUC
CPUT Internal
CPUC Internal
Tdrive_CPU_STP#,10nS>200mV
Figure 7. CPU_STP# Deassertion Waveform
1.8mS
CPU_STOP#
PD
CPUT(Free Running
CPUC(Free Running
CPUT(Stoppable)
CPUC(Stoppable)
DOT96T
DOT96C
Figure 8. CPU_STP#= Driven, CPU_PD = Driven, DOT_PD = Driven
Document #: 38-07680 Rev. **
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