xr
XRT83D10
SINGLE CHANNEL DS1/CEPT LINE INTERFACE UNIT
REV. 1.0.3
3
PIN DESCRIPTIONS
MICROPROCESSOR
PIN #NAME
TYPE
DESCRIPTION
15
CS
I
Microprocessor Interface Select (Active Low)
CS loads the data into the device on its falling edge and latches the data on its
rising edge.
For Hardware mode, CS is left open or connected to GND.
NOTE: Internally pulled down
1EC1
I
Transmit Equalization Control.
The three inputs, EC1,EC2 and EC3 are used for selecting transmit equaliza-
tion.
NOTE: Internally Pulled down.
27
EC3
I
Transmit Equalization Control
NOTE: Internally Pulled down.
28
EC2
I
Transmit Equalization Control
NOTE: Internally Pulled down.
7MODE2
I
Mode Select
Mode 1 and Mode 2 select the clock and data paths through the jitter attenua-
tor.
NOTE: Internally Pulled down.
8MODE1
I
Mode Select
NOTE: Internally Pulled down.
9LOOPB
I
Loopback control.
LOOPB along with LOOPA are used for selecting different loopbacks.
NOTE: Internally Pulled down.
10
LOOPA
I
Loopback control.
LOOPB along with LOOPA are used for selecting different loopbacks.
NOTE: Internally Pulled down.
LOOPA
0
Loopback Mode
Normal Operation
Digital
LOOPB
0
1
Remote
Local
0
1