GS6150 Datasheet, PDF (56/64 Pages) Gennum Corporation – Automatic or Manual Rate Selection

Table 5-1: Register Descriptions - Standard Address Space (Continued)
Address Register Name Parameter Name
Bit
Slice
R/W
Reset
Value
Description
RSVD
15:12 RW 0_h Reserved. Do not change.
LOS_DETECTION_METHOD 11:10 RW
Determines the source of CARRIER_DETECT.
1_h 00_b: Edge detection
01_b: Strength detection
FORCE_PLL_RATE
Force the PLL to retime a specific data rate.
000_b: Reserved
001_b: 0.270Gb/s
010_b: 1.485Gb/s
011_b: 2.97Gb/s
9:7
RW
1_{h 100b: 5.94Gb/s}
101_b: Reserved
110_b: Reserved
111_b: Reserved
Used when FORCE_PLL_RATE_ENABLE is set
to 1.
FORCE_PLL_RATE_ENABLE
6:6
RW
0_h
Enables the forced PLL rate override set
using the FORCE_PLL_RATE bits.
4C_h
PLL_CONTROL
RATE_ENABLE_125M
RATE_ENABLE_5G94
Enables auto-detection of 0.125Gb/s (MADI)
signals
5:5
RW
0_{h 0b: 0.125Gb/s signals will not be detected}
1_b: 0.125Gb/s signals will be detected
Enables auto-detection of 5.94Gb/s
(6G UHD-SDI) signals.
4:4
RW
1_{h 0b: 5.94Gb/s signals will not be detected}
1_b: 5.94Gb/s signals will be detected
RATE_ENABLE_2G97
Enables auto-detection of 2.97Gb/s
(3G SDI) signals.
3:3
RW
1_{h 0b: 2.97Gb/s signals will not be detected}
1_b: 2.97Gb/s signals will be detected
RATE_ENABLE_1G485
Enables auto-detection of 1.485Gb/s (HD-
SDI) signals.
2:2
RW
1_{h 0b: 1.485Gb/s signals will not be detected}
1_b: 1.485Gb/s signals will be detected
RATE_ENABLE_270M
Enables auto-detection of 0.27Gb/s
(SD-SDI) signals.
1:1
RW
1_{h 0b: 0.27Gb/s signals will not be detected}
1_b: 0.27Gb/s signals will be detected
PLL_SOFT_RESET
Synchronous soft-reset for the PLL rate
detection state machine.
0:0
RW
0_h
0_b: Normal operation of the PLL rate
detection state machine
1_b: Resets the PLL rate detection state
machine
GS6150
Final Data Sheet
PDS-060127
Rev.2
March 2015
www.semtech.com
56 of 64
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