XRT73R12 Datasheet, PDF (5/87 Pages) Exar Corporation – TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT

PRELIMINARY
XRT73R12
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
REV. P1.0.3
TABLE 23: CHANNEL LEVEL INTERRUPT STATUS REGISTER - CR225 (ADDRESS LOCATION = 0XE1)....................................................... 63
TABLE 24: DEVICE/PART NUMBER REGISTER - CR110 (ADDRESS LOCATION = 0X6E) ........................................................................... 64
TABLE 25: CHIP REVISION NUMBER REGISTER - CR111 (ADDRESS LOCATION = 0X6F) ......................................................................... 64
THE PER-CHANNEL REGISTERS........................................................................................................................... 65
REGISTER DESCRIPTION - PER CHANNEL REGISTERS .................................................................................... 66
TABLE 26: XRT73R12 REGISTER MAP SHOWING INTERRUPT ENABLE REGISTERS (IER_N).................................................................. 66
TABLE 27: SOURCE LEVEL INTERRUPT ENABLE REGISTER - CHANNEL N ADDRESS LOCATION = 0XM1 .................................................... 66
TABLE 28: XRT73R12 REGISTER MAP SHOWING INTERRUPT STATUS REGISTERS (ISR_N).................................................................. 68
TABLE 29: SOURCE LEVEL INTERRUPT STATUS REGISTER - CHANNEL N ADDRESS LOCATION = 0XM2 .................................................... 68
TABLE 30: XRT73R12 REGISTER MAP SHOWING ALARM STATUS REGISTERS (AS_N) .......................................................................... 70
TABLE 31: ALARM STATUS REGISTER - CHANNEL N ADDRESS LOCATION = 0XM3................................................................................... 70
TABLE 32: XRT73R12 REGISTER MAP SHOWING TRANSMIT CONTROL REGISTERS (TC_N)................................................................... 73
TABLE 33: TRANSMIT CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM4 ........................................................................... 73
TABLE 34: XRT73R12 REGISTER MAP SHOWING RECEIVE CONTROL REGISTERS (RC_N) .................................................................... 75
TABLE 35: RECEIVE CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM5 ............................................................................. 75
TABLE 36: XRT73R12 REGISTER MAP SHOWING CHANNEL CONTROL REGISTERS (CC_N) ................................................................... 76
TABLE 37: CHANNEL CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM6 ............................................................................ 76
TABLE 38: XRT73R12 REGISTER MAP SHOWING ERROR COUNTER MSBYTE REGISTERS (EM_N)........................................................ 79
TABLE 39: ERROR COUNTER MSBYTE REGISTER - CHANNEL N ADDRESS LOCATION = 0XMA................................................................. 79
TABLE 40: XRT73R12 REGISTER MAP SHOWING ERROR COUNTER LSBYTE REGISTERS (EL_N).......................................................... 79
TABLE 41: ERROR COUNTER LSBYTE REGISTER - CHANNEL N ADDRESS LOCATION = 0XMB.................................................................. 80
TABLE 42: XRT73R12 REGISTER MAP SHOWING ERROR COUNTER HOLDING REGISTERS (EH_N) ........................................................ 80
TABLE 43: ERROR COUNTER HOLDING REGISTER - CHANNEL N ADDRESS LOCATION = 0XMC ................................................................ 81
8.0 ELECTRICAL CHARACTERISTICS ................................................................................................... 82
TABLE 44: ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................. 82
TABLE 45: DC ELECTRICAL CHARACTERISTICS:..................................................................................................................................... 82
ORDERING INFORMATION .................................................................................................................. 83
PACKAGE DIMENSIONS - .............................................................................................................................................. 83
REVISIONS .................................................................................................................................................................. 84
III