XRT83L34ES Exar, XRT83L34ES Datasheet - Page 21
XRT83L34ES
Manufacturer Part Number
XRT83L34ES
Description
Peripheral Drivers & Components - PCIs
Manufacturer
Exar
Datasheet
1.XRT83L34ES.pdf
(99 pages)
Specifications of XRT83L34ES
Product Category
Peripheral Drivers & Components - PCIs
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QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
S
IGNAL
JASEL1
JASEL0
TRATIO
EQC4
EQC3
EQC2
EQC1
EQC0
A[6]
A[5]
A[4]
A[3]
A[2]
A[1]
A[0]
INT
N
AME
P
119
119
57
58
59
60
61
62
63
57
58
59
60
61
62
63
IN
#
T
YPE
I
I
Address Bus Input Pins/Jitter Attenuator Select Input Pins/Equalizer
Control Input pins:
The exact function of these input pins depends upon whether the XRT83L34
device has been configured to operate in the HOST or Hardware Mode, as
described below.
HOST Mode Operation - Address Bus Input Pins - A[6:0]:
These pins permits the Microprocessor to identity on-chip registers (within
the XRT83L34 device0 whenever it performs READ and WRITE operations
with the XRT83L34 device.
Microprocessor Interface Address Bus[6]
Microprocessor Interface Address Bus[5]
Microprocessor Interface Address Bus[4]
Microprocessor Interface Address Bus[3]
Microprocessor Interface Address Bus[2]
Microprocessor Interface Address Bus[1]
Microprocessor Interface Address Bus[0]
Jitter Attenuator Select Pins - Hardware Mode
Jitter Attenuator select pin 1
Jitter Attenuator select pin 0
See “Jitter Attenuator” on page 19.
Equalizer Control Pins - Hardware Mode
Equalizer Control Input pin 4
Equalizer Control Input pin 3
Equalizer Control Input pin 2
Equalizer Control Input pin 1
Equalizer Control Input pin 0
Pins EQC[4:0] select the Receive Equalizer and Transmitter Line Build Out.
See “Alarm Function//Redundancy Support” on page 21.
N
Interrupt Output - 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.
Transmitter Transformer Ratio Select - Hardware mode
The function of this pin is to select the transmitter transformer ratio.
“Alarm Function//Redundancy Support” on page 21.
N
OTE
OTE
: Internally pulled “Low” with a 50kΩ resistor.
: This pin is an open drain output and requires an external 10kΩ pull-
up resistor.
18
D
ESCRIPTION
XRT83L34
REV. 1.0.1
See
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