
2-4
MC92610 SERDES User’s Manual
MOTOROLA
Transmitter Interface Signals
TBIE
Ten-Bit Interface Enable Indicates that pre-coded 10-bit data is at
inputs and to bypass internal 8B/10B
coding.
Input
High
REPE
Repeater Mode Enable
When enabled, the transmitter obtains
transmit data from the receiver.
Input
High
LME
Link Multiplexer Mode
Enable
Indicates that the data on transmitter A
and B are aggregated and transmit out
of link A. Likewise, the data on
transmitter C and D are aggregated and
transmit out of link C.
Input
High
DDRE
Double Data Rate
Enable
When in Link Multiplexer mode (LME
signal is high) this signal indicates that
the data interfaces are running at double
data rate. When not in Link Multiplexer
mode, this signal does not affect device
operation.
Input
High
HSE
Half Speed Enable
When enabled, link is operated at
half-speed. Both data and link interfaces
run at half speed.
Input
High
LBE
Loop Back Enable
Activate digital loopback path, such that
data transmitted is looped back to its
receiver.
Input
High
LBOE
Loop Back Output
Enable
Indicates that selected link outputs
remain active when loop back is
enabled. The link outputs are disabled
when LBOE is low and loop back is
enabled.
Input
High
TST_1, TST_0
Test Mode Select
Selects a test mode.
Input
-
XLINK_x0_N/
XLINK_x0_P
Link Serial Transmit
Data, Primary Links
Differential serial transmit data output
pads for the primary links.
Output
-
XLINK_x1_N/
XLINK_x1_P
Link Serial Transmit
Data, Redundant Links
Differential serial transmit data output
pads for the redundant links.
Output
-
Internal Signals
rx_clock
High Speed Transceiver
Clock
Internal, differential high speed clock
used to transmit and receive link data.
Input
-
repeat_data
Received Repeat Data
Repeater mode, received data to
retransmit.
Input
-
link_mux_data
Link Multiplexer Mode
Data
Data from adjacent transmitter to
transmit on this transmitter when in Link
Multiplexer mode (LME is asserted.)
Input
-
loop_back_data
Loop Back Data
Differential loop back transmit data.
Output
-
Table 2-1. MC92610 Transmitter Interface Signals (continued)
Signal Name
Description
Function
Direction
Active
State
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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