AN983 ETC [List of Unclassifed Manufacturers], AN983 Datasheet - Page 47

• Manufacturer Part Number: AN983
• Description: PCI/miniPCI-to-Ethernet LAN Controller
• Manufacturer: ETC [List of Unclassifed Manufacturers]

7.3. PHY REGISTERS (ACCESSED BY CSR9
7.3.1. TRANSCEIVER REGISTERS DESCRIPTIONS
Register 0 (MII Control)
SC
Reset
Loopback
Rev. 1.8
Note: No reset is performed to analogue sections of the port. There is also no physical reset to any
internal clock synthesisers or the local clock recovery oscillator which will continue to run throughout
the reset period. However since the port is restarted and autoneg re-run the process of locking the
frequency of the local oscillator (slave) to the reference oscillator (master) will be repeated as it is at
the start of any link initialization process.
MDI/MMC/MDO/MDC)
BIT
15
14
13
12
11
10
9
8
7
6:0
NAME
Reset
Loopback
Speed selection
Autonegotiation enable
Power down
Isolate
Restart autonegotiation
Duplex mode
Collision test
Reserved
1. Restart the autonegotiation process.
2. Reset the registers to their default values. Note that this does not affect registers
20, 22, 30 or 31. These registers are not reset by this bit to allow test configurations
to be written and then not affected by resetting the port.
Self Clearing
Reset this port only. This will cause the following:
Loop back of transmit data to receive via a path as close to the wire as possible.
AN983B
DESCRIPTION
1 = PHY Reset
0 = normal operation
1 = enable loopback
0 = disable loopback
1 = 100Mbps/s
0 = 10 Mb/s
1 = enable autoneg
0 = disable autoneg
1 = Power Down
0 = normal operation
1 = isolate PHY from MII
0 = normal operation
1 = Restart Autoneg
1 = full, 0 = half
Not implemented
www.admtek.com.tw
ADMtek Inc.
PCI/miPCI Fast Ethernet Controller with integrated PHY
Read/Write
R/W, SC
R/W
R/W
R/W
R/W
R/W
R/W, SC
R/W
RO
RO
DEFAULT
0
0
Pin - see note
Pin – see note
0
0
0
Pin – see note
0 - see note
0000000
47