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CY7C4255
CY7C4265
Document #: 38-06004 Rev. *C
Page 14 of 22
Read Expansion In Timing
Retransmit Timing[33, 34, 35]
Notes:
33. Clocks are free-running in this case.
34. The flags may change state during Retransmit as a result of the offset of the read and write pointers, but flags will be valid at tRTR.
35. For the synchronous PAE and PAF flags (SMODE), an appropriate clock cycle is necessary after tRTR to update these flags.
Switching Waveforms (continued)
RCLK
RXI
tXI
tXIS
REN/WEN
FL/RT
tPRT
tRTR
EF/FF
and all
async flags
HF/PAE/PAF
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