HD64570 Datasheet, PDF (406/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

TXC
(Output)
t _TDD2
t
*1
TDD2
TXD
(Output)
For details of the TXC waveform, see figure 10.19, Baud Rate Generator Output Timing.
Note ^*1: There is no transition of the TXD at this point in NRZ mode.
Figure 10.15 Transmit Timing (TXC output)
RXC
(Input)
RXD
(Input)
t _RCr
t _RCHW
t _{RDS1 t RDH1}
t _RCf
t _RCLW
t _RCYC
Figure 10.16 Receive Timing (RXC input)
RXC
(Output)
RXD
(Input)
t _RDS2
t _RDH2
For details of the RXC waveform, see figure 10.19, Baud Rate Generator Output Timing.
Figure 10.17 Receive Timing (RXC output)
t _PLr
RXC
(Input)
t _PLf
t _PLLW
t _PLHW
t _PLCY
Figure 10.18 ADPLL Operating Clock Timing
Rev. 0, 07/98, page 390 of 453