ax88783lf ASIX Electronics Corporation, ax88783lf Datasheet - Page 16

• Manufacturer Part Number: ax88783lf
• Description: 2-port 10/100m Fast Ethernet Controller
• Manufacturer: ASIX Electronics Corporation

P0_TXOP,
P0_TXON
P0_RXIP,
P0_RXIN
P0_XTLN,
P0_XTLP
P0_RSET_BG
P0_LED0
P0_LED1
P0_LED2
P0_VCC18A
P0_VCC33A
P0_GND18A
P0_GND33A
2.0 Pin Descriptions
following Tables. (Assume VCC3IO = 3.3V)
* The AX88782 Only supports P0_LED0 and P0_LED1 LED output function.
Signal Name
I/O Definition: The following terms describe the AX88782/AX88783 pin-out. The following abbreviations are used in
I18
I3
O18
O3
B18
B3
AB
A
2.1
2.1.1 PHY Mode
Port 0 Interface
O3/8mA
B3/8mA
B3/8mA
Input 1.8V
Input 3.3V
Output 1.8V
Output 3.3V
Bi-directional 1.8V
Bi-directional 3.3V
Analog Bi-directional
Analog
O18
P/A
P/A
P/A
P/A
I/O
AB
AB
I18
AO
AX88782
Pin No.
N/A*
1, 13
4, 10
11
12
75
76
3
2
6
5
9
8
7
AX88783
Pin No.
4, 10
1, 13
120
121
122
11
12
3
2
6
5
9
8
7
Transmit Differential Data Pair for PHY0.
The differential data is transmitted to the media on the TXOP/TXON
signal pair in MDI mode or received differential data input positive
pin in MDIX mode.
Receive Differential Data Pair for PHY0.
The differential data is received from the media on the RXIP/RXIN
signal pair in MDI mode or transmitted differential data output
negative pin in MDIX mode.
25Mhz ± 50 PPM crystal or oscillator clock input. A 25 MHz
parallel-resonant crystal may be connected between these pins to
stabilize the internal oscillator. This clock is needed for the
embedded 10/100M Ethernet PHY to operate.
25MHz Crystal Feedback Output. This output is used in crystal
connection only. It must be left open when P0_XTLN is driven with
an external 25MHz oscillator.
Off-chip resistor. Connect 12.1Kohm ± 1% resistor to analog
ground.
Port 0 PHY LED 0 signal output. Please configure LCR [7:0] to
select LED output function.
Port 0 PHY LED 1 signal output. Please configure LCR [15:8] to
select LED output function.
Port 0 PHY LED 2 signal output. Please configure LCR [23:16] to
select LED output function.
1.8V power supply for internal PHY Analog circuit
3.3V power supply for internal PHY Analog circuit.
1.8V Ground for internal PHY Analog circuit
3.3V Ground for internal PHY Analog circuit.
PU
PD
P
NC
OD
T
8mA
16mA
16
Pull Up
Pull Down
Power Pin
No Connect
Open Drain
Tri-state
8 mA drive strength
16 mA drive strength
2-Port 10/100M Fast Ethernet Controller
ASIX ELECTRONICS CORPORATION
Description
Non-PCI 8/16/32-Bit
AX88782/AX88783