GS6150 Datasheet, PDF (57/64 Pages) Gennum Corporation – Automatic or Manual Rate Selection

Table 5-1: Register Descriptions - Standard Address Space (Continued)
Address Register Name
4D_h
RESERVED
4E_h
RESERVED
Parameter Name
RSVD
RSVD
RETIMER_BYPASS
LBR_HBR
4F_h
PLL_STATUS
DETECTED_RATE
RSVD
LOCKED
LOS
RSVD
Bit
Slice
R/W
Reset
Value
Description
15:0 RW 110_h Reserved. Do not change.
15:0 RW 110_h Reserved. Do not change.
15:15 RO
Indicates whether the retimer is active or
bypassed.
—
0_b: Retimer is active
1_b: Retimer is bypassed
14:14 RO
Indicates high-bit-rate versus low-bit-rate.
— ^{0b: Input data rate is 5.94Gb/s,}
2.97Gb/s, 1.485Gb/s, or BYPASS
1_b: Input data rate is 270Mb/s or 125Mb/s
13:11 RO
Indicates the current rate found by the PLL
rate detection state machine.
000_b: 0.125Gb/s
001_b: 0.270Gb/s
— ^{010b: 1.485Gb/s}
011_b: 2.97Gb/s
100_b: 5.94Gb/s
101_b: Reserved
110_b: Reserved
111_b: Reserved
10:10 RO — Reserved.
Indicates if the CDR is locked or unlocked.
9:9
RO
— 0_b: CDR is unlocked
1_b: CDR is locked
Indicates whether or not the CDR has lost
the signal.
8:8
RO
—
0_b: Signal is present
1_b: Loss of signal
7:0 RO — Reserved.
GS6150
Final Data Sheet
PDS-060127
Rev.2
March 2015
www.semtech.com
57 of 64
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