HD64570 Datasheet, PDF (223/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

TXC line RXC line
Input Input
Receive BRG output
Baud rate
generator
CLK
Transmit BRG output
ADPLL operating clock
ADPLL
Receive clock or
ADPLL operating clock
Extracted clock
Noise-suppressed
clock
Receive clock
MSCI
Transmit clock
Figure 5.29 Selecting Transmit and Receive Clock Sources
Rev. 0, 07/98, page 207 of 453