XRT83L30 Datasheet, PDF (59/78 Pages) Exar Corporation – SINGLE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

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XRT83L30
ONE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
PRELIMINARY
REV. P1.3.0
TABLE 25: MICROPROCESSOR REGISTER #7 BIT DESCRIPTION
REGISTER ADDRESS
00111
BIT #
NAME
FUNCTION
REGISTER RESET
TYPE VALUE
D7
Reserved
RO
0
D6
Reserved
RO
0
D5
CLOS5 Cable Loss bit 5: CLOS[5:0] are the six bits receiver for selec-
RO
0
tive equalizer setting which is also a binary word that represents
the cable attenuation indication within ±1dB. CLOS5 is the most
significant bit (MSB) and CLOS0 is the least significant bit (LSB).
D4
CLOS4 Cable Loss bit 4: See description of D5 for function of this bit.
RO
0
D3
CLOS3 Cable Loss bit 3: See description of D5 for function of this bit.
RO
0
D2
CLOS2 Cable Loss bit 2: See description of D5 for function of this bit.
RO
0
D1
CLOS1 Cable Loss bit 1: See description of D5 for function of this bit.
RO
0
D0
CLOS0 Cable Loss bit 0: See description of D5 for function of this bit.
RO
0
TABLE 26: MICROPROCESSOR REGISTER #8 BIT DESCRIPTION
REGISTER ADDRESS
01000
BIT #
NAME
FUNCTION
REGISTER RESET
TYPE VALUE
D7
Reserved
R/W
0
D6-D0
B6S1 - B0S1 Arbitrary Transmit Pulse Shape, Segment 1
R/W
0
The shape of the transmitted pulse can be made user program-
mable by selecting "Arbitrary Pulse" mode, see Table 5. The arbi-
trary pulse is divided into eight time segments whose combined
duration is equal to one period of MCLK.
This 7 bit number represents the amplitude of the arbitrary pulse
during the first time segment. B6S1 -B0S1 is in signed magni-
tude format with B6S1 as the sign bit and B0S1 as the least sig-
nificant bit (LSB).
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