DM8603EP DAVICOM [Davicom Semiconductor, Inc.], DM8603EP Datasheet - Page 23
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DM8603EP
Manufacturer Part Number
DM8603EP
Description
10/100 Mbps 3-port Ethernet Switch Controller with MII / RMII Interface
Manufacturer
DAVICOM [Davicom Semiconductor, Inc.]
Datasheet
1.DM8603EP.pdf
(107 pages)
- Current page: 23 of 107
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6.9 Specified Configuration Register (054h, 074h)
Preliminary datasheet
DM8603-12-DS-P01
November 8, 2010
15:12
PHY_ADR
02h, 03h
Bit
3:0
11
10
9
8
7
6
5
4
Mdix_fix Value
PREAMBLEX
TX10M_PWR
NWAY_PWR
MDIX_CNTL
RESERVED
RESERVED
RESERVED
RESERVED
Mdix_down
Bit Name
REG_ADR
14h
Default
0000b
0000b
RW
RW
RW
RW
RW
RW
RW
RW
RO
RO
0b
0b
0b
0b
0b
0b
0b
*
10/100 Mbps 3-port Ethernet Switch Controller with MII / RMII Interface
Reserved
Write as 0000b, ignore when read
Preamble Saving Control
10BASE-T mode Transmit Power Saving Control
Auto-negotiation Power Saving Control
Reserved
Read as 0, ignore on write
The Polarity of MDI/MDIX value
Reserved
Write as 0b, ignore when read
MDIX_CNTL force value:
When Mdix_down = 1, MDIX_CNTL value depend on the register
value
MDIX Down
Manual force MDI/MDIX.
MDIX_CNTL value depend on REG 02h/03h.14h.[5]
Reserved
Write as 0000b, ignore when read
0 = When bit 10 is set, the 10BASE-T transmit preamble count is
1 = Transmit preamble bit count is normal in 10BASE-T mode
1 = Enable transmit power saving in 10BASE-T mode
0 = Disable transmit power saving in 10BASE-T mode
1 = Disable power saving during auto-negotiation period
0 = Enable power saving during auto-negotiation period
1 = MDIX mode
0 = MDI mode
0 = Enable HP Auto-MDIX
1 = Disable HP Auto-MDIX
reduced. When REG 02h/03h.1Dh.[11] is set, 12-bit preamble is
reduced; otherwise 22-bit preamble is reduced.
ABS_ADR
054h, 074h
Description
DM8603
23
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