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AC101L-DS02-R 数据表(PDF) 24 Page - Broadcom Corporation.

部件名 AC101L-DS02-R
功能描述  Ultra Low-Power 10/100 Ethernet Transceiver with Auto-MDIX
PDF  54 Pages
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制造商  BOARDCOM [Broadcom Corporation.]
网页  http://www.broadcom.com
标志 BOARDCOM - Broadcom Corporation.

AC101L-DS02-R 数据表(HTML) 24 Page - Broadcom Corporation.

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AC101L
Preliminary Data Sheet
8/9/04
B roa dcom Co rpo rat ion
Page 14
TP PHY Register Summary
Document
AC101L-DS06-R
REGISTER 0: CONTROL REGISTER
REGISTER 1: STATUS REGISTER
Table 5: Register 0: Control Register
Bit
Name
Description
Mode
Default
0.15
Reset
1 = PHY reset.
This bit is self-clearing.
RW/
SC
0
0.14
Loopback
1 = Enable loopback mode. This loops back TXD to RXD and ignores all of the
activity on the cable media.
0 = Normal operation.
RW
0
0.13
Speed
Select
1 = 100 Mbps.
0 = 10 Mbps.
Default value:
SPD100
RW
Set by
SPD100
0.12
ANEN
Enable
1 = Enable the auto-negotiate process (overrides 0.13 and 0.8).
0 = Disable the auto-negotiate process.
Mode selection is controlled via bit 0.8, 0.13.
Default value:
ANEN
RW
Set by
ANEN
0.11
Power
Down
1 = Power down. All blocks except for SMI will be turned off.
Setting PDOWN pin (24) to LOW will achieve the same result.
0 = Normal operation.
RW
0
0.10
Isolate
1 = N/A.
0 = Normal operation.
RW
0
0.9
Restart
ANEN
1 = Restart auto-negotiation process.
0 = Normal operation.
RW/
SC
0
0.8
Duplex
Mode
1 = Full-duplex operation.
0 = Half-duplex operation.
Default value:
!ANEN && DUPLEX
RW
See
descriptio
n
0.7
Collision
Test
1 = Enable collision test that issues the COL signal in response to the assertion
of the TXEN signal. Collision test is disabled if the PCSBP pin is high. Collision
test is enabled regardless of the duplex mode.
0 = Disable COL test.
RW
0
0.[6:0
]
Reserved
–
RW
0000000
Table 6: Register 1: Status Register
Bit
Name
Description
Mode
Default
1.15
100BASE-T4
Permanently tied to zero; indicates no 100BASE-T4 capability.
RO
0
1.14
100BASE-TX
Full-Duplex
1 = 100BASE-TX full-duplex capable.
0 = Not 100BASE-TX full-duplex capable.
Default value:
SPD100 && DUPLEX
RO
See
description



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