DM9161_08 Datasheet, PDF (28/50 Pages) Davicom Semiconductor, Inc. – 10/100 Mbps Fast Ethernet Physical Layer TX/FX Single Chip Transceiver

DM9161
10/100 Mbps Fast Ethernet Physical Layer TX/FX Single Chip Transceiver
8.7 Auto-negotiation Expansion Register (ANER)- 06
6.15-6.5
6.4
Reserved
PDF
6.3 LP_NP_ABLE
6.2
NP_ABLE
6.1
PAGE_RX
6.0 LP_AN_ABLE
0, RO
0, RO/LH
0, RO
0,RO/P
0, RO/LH
0, RO
Reserved
Read as 0, ignore on write
Local Device Parallel Detection Fault
PDF = 1: A fault detected via parallel detection function.
PDF = 0: No fault detected via parallel detection function
Link Partner Next Page Able
LP_NP_ABLE = 1: Link partner, next page available
LP_NP_ABLE = 0: Link partner, no next page
Local Device Next Page Able
NP_ABLE = 1: DM9161, next page available
NP_ABLE = 0: DM9161, no next page
DM9161 does not support this function, so this bit is always 0
New Page Received
A new link code word page received. This bit will be automatically
cleared when the register (register 6) is read by management
Link Partner Auto-negotiation Able
A “1” in this bit indicates that the link partner supports
Auto-negotiation
8.8 DAVICOM Specified Configuration Register (DSCR) - 16
Bit
16.15
16.14
16.13
16.12
16.11
16.10
16.9
Bit Name
BP_4B5B
BP_SCR
BP_ALIGN
BP_ADPOK
REPEATER
TX
FEF
Default
0,RW
0, RW
0, RW
0, RW
(Pin#38),RW
1, RW
0, Rw
Description
Bypass 4B5B Encoding and 5B4B Decoding
1 = 4B5B encoder and 5B4B decoder function bypassed
0 = Normal 4B5B and 5B4B operation
Bypass Scrambler/Descrambler Function
1 = Scrambler and descrambler function bypassed
0 = Normal scrambler and descrambler operation
Bypass Symbol Alignment Function
1 = Receive functions (descrambler, symbol alignment and symbol
decoding functions) bypassed. Transmit functions (symbol encoder
and scrambler) bypassed
0 = Normal operation
BYPASS ADPOK
Force signal detector (SD) active. This register is for debug only, not
release to customer
1=Forced SD is OK,
0=Normal operation
Repeater/Node Mode
The value of the Repeater/Node pin (38) is latched into this bit at
power-up/reset
1 = Repeater mode
0 = Node mode
100BASE-TX Mode Control
1 = 100BASE-TX operation
0=100BASE-FX operation
Far End Fault Enable:
Control the Far End Fault mechanism
Associated with 100BASE-FX operation
28
Final
Version: DM9161-DS-F05
September 10, 2008