78Q2120C Teridian Semiconductor Corp. (TDK Semiconductor), 78Q2120C Datasheet - Page 19

• Manufacturer Part Number: 78Q2120C
• Description: 10/100 Ethernet PHYS
• Manufacturer: Teridian Semiconductor Corp. (TDK Semiconductor)

78Q2120C
10/100BASE-TX Transceiver
MR19: Transceiver Control
MR20: Reserved
MR21: Reserved
MR22: Reserved
© 2003 TDK Semiconductor Corporation, Proprietary and Confidential
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Bit
Bit
Bit
Bit
Reserved
Reserved
Reserved
TXO[1:0]
Symbol
Symbol
Symbol
Symbol
RSVD
RSVD
RSVD
Type Default Description
Type Default Description
Type Default Description
Type Default Description
R/W
R/W
R/W
na
na
na
R
0000h
0000h
0000h
XXXh
01
00
01
Reserved
Reserved
Transmit Amplitude Selection: Sets the transmit output amplitude to
account for transmit transformer insertion loss.
00 : Gain set for 0.0dB of insertion loss
01 : Gain set for 0.4dB of insertion loss
10 : Gain set for 0.8dB of insertion loss
11 : Gain set for 1.2dB of insertion loss
Reserved
Reserved: Must be 0000h.
Reserved: Must be 0000h.
Reserved: Must be 0000h.
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