78Q8430-100CGT/F TERIDIAN, 78Q8430-100CGT/F Datasheet - Page 22

• Manufacturer Part Number: 78Q8430-100CGT/F
• Description: IC, ETHERNET TXRX, IEEE 802.3, LQFP-100
• Manufacturer: TERIDIAN

Specifications of 78Q8430-100CGT/F

• No. Of Ports: 2
• Ethernet Type: IEEE 802.3x, IEEE 802.3u, IEEE 802.3-2000
• Ic Interface Type: Host Bus, JTAG
• Supply Voltage Range: 0V To 3.3V
• Operating Temperature Range: 0°C To +70°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MR24: MDI/MDIX Control Register
Page: 22 of 39
24.15:8
24.3:0
24.7
24.6
24.5
24.4
BIT
PD_MODE
AUTO_SW
MDIX_CM
MDIX_SD
SYMBOL
Reserved
MDIX
TYPE DEFAULT DESCRIPTION
R/W
R/W
R/W
R/W
R
R
<0000>
0
1
1
0
0
©
2006 Teridian Semiconductor Corporation
Reserved
Write a ‘1’ to this bit to add Parallel Detect mode. This will allow
auto-switching to work when auto-negotiation is off while the
other device has it on.
Write a ‘1’ to this bit to enable auto switching.
Indicates state of the MDI pair or force configuration:
1 = MDIX (cross over)
0 = MDI
When auto_sw is a ‘1’, this bit will only be readable. When
auto_sw is a ‘0’ this bit can be written to set the configuration.
Indicates completion of auto-switch sequence.
1 = Sequence completed
0 = Sequence in progress or auto-switch is disabled.
Write initial pattern seed for switching algorithm.
seed directly affects attempts [5,4] respectively to write bits [3:0].
Setting to [0000] will result in device using its own seed of [0101].
10/100BASE-TX Transceiver
The initial
Rev 1.1