XRT73L02M Datasheet, PDF (37/46 Pages) Exar Corporation – TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT

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REV. 1.0.0
TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
TABLE 14: REGISTER MAP DESCRIPTION - GLOBAL
XRT73L02M
ADDRESS
(HEX)
TYPE
REGISTER
NAME
0x00
R/W APS/Redu
ndancy
SYMBOL
RxON_n
TxON_n
DESCRIPTION
Bit 4 = RxON_0,Bit 5 = RxON_1
Receiver Turn On. Writing a “1” to the bit field turns
on the Receiver and a “0” turn off the Receiver.
Bit 0 = TxON_0, Bit 1 = TxON_1
Table below shows the status of the transmitter based
on the bit and pin setting.
DEFAULT
VALUE
0
0
Bit
Pin
Transmitter Status
0
0
OFF
0
1
OFF
1
0
OFF
1
1
ON
INTEN_n Bit 1 = INTEN_1, Bit 0 = INTEN_0.
0
0x20
R/W Interrupt
Writing a “1” to these bits enable the interrupts for
Enable
the corresponding channels.
0x21
Read Interrupt
INTST_n Bit 1 = INTST_1, Bit 0 = INTST_0.
0
Only Status
Respective bits are set to “1” if an interrupt service is
required. The respective source level interrupt status
registers are read to determine the cause of interrupt.
0x22 -
0x3D
Reserved
0x3E
Read Device
Only Number
Chip_id This read only register contains device id.
0x3F
Read Version
Only Number
Chip_version This read only register contains chip version number
TABLE 15: REGISTER MAP AND BIT NAMES - CHANNEL 0 REGISTERS
ADDRESS PARAMETER
DATA BITS
(HEX)
NAME
7
6
5
4
3
2
1
0
0x01 Interrupt Enable
(read/write)
Reserved
RLOLIE_0 RLOSIE_ DMOIE_0
0
0x02 Interrupt Status
(reset on read)
Reserved
RLOLIS_0 RLOSIS_ DMOIS_0
0
0x03
Alarm Status Reserved PRBSLS_0 DLOS_0 ALOS_0 Reserved RLOL_0 RLOS_0 DMO_0
(read only)
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