xrt83l30 Exar Corporation, xrt83l30 Datasheet - Page 8

• Manufacturer Part Number: xrt83l30
• Description: Xrt83l30 -single-channel T1/e1/j1 Long-haul, Short-haul Line Interface Unit
• Manufacturer: Exar Corporation

SERIAL INTERFACE
XRT83L30
SINGLE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
PIN DESCRIPTIONS BY FUNCTION
S
IGNAL
HW/HOST
EQC4
EQC3
SCLK
EQC2
EQC1
EQC0
SDO
SDI
INT
CS
N
AME
P
20
21
22
23
24
25
IN
#
T
YPE
O
O
I
I
I
I
I
I
Mode Control Input
This pin is used for selecting Hardware or Host mode to control the device.
Leave this pin unconnected or tie “High” to select Hardware mode. For Host
mode, this pin must be tied “Low”.
N
Serial Data Input
In Host mode, this pin is the data input for the Serial Interface.
Equalizer Control Input 4
Hardware mode,
Serial Data Output
In Host mode, this pin is the output “Read” data for the serial interface.
Equalizer Control Input 3
Hardware mode,
Serial Interface Clock Input
In Host mode, this clock signal is used to control data “Read” or “Write” oper-
ation for the Serial Interface. Maximum clock frequency is 20MHz.
Equalizer Control Input 2
Hardware mode,
Chip Select Input
In Host mode, tie this pin “Low” to enable communication with the device via
the Serial Interface.
Equalizer Control Input 1
Hardware mode,
Interrupt Output (active "Low")
In Host mode, this pin goes “Low” to indicate an alarm condition has
occurred within the device. Interrupt generation can be globally disabled by
setting the GIE bit to “0” in the command control register.
Equalizer Control Input 0
Hardware mode,
N
OTE
OTE
: Internally pulled “High” with a 50kΩ resistor.
: This pin is an open drain output and requires an external 10kΩ pull-
up resistor.
5
SEE”CONTROL FUNCTION” ON PAGE 13.
SEE”CONTROL FUNCTION” ON PAGE 13.
SEE”CONTROL FUNCTION” ON PAGE 13.
SEE”CONTROL FUNCTION” ON PAGE 13.
SEE”CONTROL FUNCTION” ON PAGE 13.
D
ESCRIPTION
REV. 1.0.1