GS6150 Datasheet, PDF (43/64 Pages) Gennum Corporation – Automatic or Manual Rate Selection

Table 5-1: Register Descriptions - Standard Address Space (Continued)
Address Register Name
Parameter Name
RSVD
GPIO3_IO_SELECT
RSVD
3_h
GPIO_CONTROL_
REG_1
GPIO3_SELECT
Bit
Slice
R/W
Reset
Value
Description
15:14 RW
13:13 RW
12:11 RW
10:7 RW
0_h Reserved. Do not change.
GPIO3 Input/Output Select
1_h 0_b: Output
1_b: Input
0_h Reserved. Do not change.
GPIO3 Signal Selection
If GPIO3_IO_SELECT is set to 0:
0000_b: LOS
0001_b: LOCKED
0010_b: LBR_HBR
0011_b: Reserved
0100_b: Reserved
0101_b: RATE_DET0
0110_b: RATE_DET1
1_h
0111_b: RATE_DET2
1000_b: LOCKED_125M
1001_b: LOCKED_270M
1010_b: LOCKED_1G485
1011_b: LOCKED_2G97
1100_b: LOCKED_5G94
1101_b: RATE_CHANGE
GPIO2_IO_SELECT
If GPIO3_IO_SELECT is set to 1:
0000_b: DDO0_DISABLE
0001_b: DDO1_DISABLE (default)
GPIO2 Input/Output Select
6:6
RW
0_h 0_b: Output
1_b: Input
GS6150
Final Data Sheet
PDS-060127
Rev.2
March 2015
www.semtech.com
43 of 64
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