
PEB 20542
PEF 20542
Functional Overview
Data Sheet
53
2000-09-14
3.2.3.2
Clock Mode 1
Externally generated RxCLK is supplied to both the receiver and transmitter. In addition,
a receive strobe can be connected via CD and a transmit strobe via TxCLK pin. These
strobe signals work on a per bit basis. This operating mode can be used in time division
multiplex applications or for adjusting disparate transmit and receive data rates.
Note: In Extended Transparent Mode, the above mentioned strobe signals provide byte
synchronization (byte alignment).
This means that the strobe signal needs to be detected once only to transmit or
receive a complete byte.
Figure 14
Clock Mode 1 Configuration
RxCLK
CTS
, CxD, TCG
CD
, FSC, RCG
TxCLK
RTS
RxD
TxD
X
X
clock supply
1
clock mode 1
receive strobe
transmit strobe
RxD
CD
(rx strobe)
TxCLK
(tx strobe)
RxCLK
TxD
V
SS
(enables transmit)
Note: In extended transparent mode the strobe signals need to be detected once only to
transmit or receive a complete byte. Thus byte alignment is provided in this mode.
Ctrl.
Ctrl.