Datasheet

73M1866B/73M1966B Data Sheet DS_1x66B_001
54 Rev. 1.6
Function
Mnemonic
Register
Location
Type Description
RXDG 0x09[7:0] WO Receiver Digital Gain
These bits controls the value of the digital gain section of the
73M1x66B receive path. Each bit indicates either a gain or
attenuation value. The net value of the gain setting is the linear sum
of each attributed value. Reading the RXDG register returns all
zeros, regardless of what was written to them.
RXDG –12dB RXDG –6dB RXDG +3.5dB RXDG +2dB RXDG +1dB RXDG +0.5dB RXDG +0.25dB RXDG +0.125dB
Gain/Attenuate
0 0 0 0 0 0 0
0 0dB (default)
1 0 0 0 0 0 0
0 -12 dB
0 1 0 0 0 0 0
0 -6 dB
0 0 1 0 0 0 0
0 +3.5 dB
0 0 0 1 0 0 0
0 +2 dB
0 0 0 0 1 0 0
0 +1 dB
0 0 0 0 0 1 0
0 +0.5 dB
0 0 0 0 0 0 1
0 +0.25 dB
0 0 0 0 0 0 0
1 +0.125 dB
Examples:
10000000 -12dB
00100000 +3.5dB
00010011 +2 + 0.25 + 0.125 =2.375dB
01001000 -6 + 1 = -5dB
RXEN 0x16[6] W Receive Path Enable
1 = Enable Receive Path.
0 = Disable Receive Path. (Default)
RXG 0x14[1:0] W Receive Gain
Sets the receive path gain/attenuation. See Table 36.
RXOCEN 0x17[5] W Rx DC Offset Calibrate Enable
When RXOCEN is set to 1 and OFH, ENDC and ENNOM are reset
to 0, the receiver dc offset calibration process is enabled. RXOCEN
must be reset to 0 before OFH, ENDC and ENNOM are set to 1 in
order for the calibration to operate correctly. RXOCEN should not
be used in linear mode.
Default value is 0.
RXOM 0x25[7:0] W RX Offset Measurement
Stores the result of the receive offset measurement.
See Section 8.8.3.