AX88170L ASIX [ASIX Electronics Corporation], AX88170L Datasheet - Page 7

• Manufacturer Part Number: AX88170L
• Description: USB to Fast Ethernet/HomePNA Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

2.0 Signal Description
2.1 USB Bus Interface Signals Group
D+
D-
Tab – 1 USB bus interface signals group
2.2 EEPROM Signals Group
EECS
EECK
EEDI
EEDO
Tab – 2 EEPROM bus interface signals group
2.3a MII interface signals group (MAC mode)
When /S_RMII=1 and /S_MAC=0
RXD[3:0]
CRS
RX_DV
RX_ER
RX_CLK
COL
TX_EN
The following terms describe the AX88170 pin-out:
All pin names with the “/” suffix are asserted low.
The following abbreviations are used in following Tables.
SIGNAL
SIGNAL
SIGNAL
OD
I/O
O
I
AX88170
Input
Output
Input/Output
Open Drain
TYPE
TYPE
TYPE
I/PU
I/O
I/PU
I/PD
I/PD
I/PD
I/PU
I/PD
I/O
O
O
O
O
PIN NO.
PIN NO.
PIN NO.
29, 28
27, 26
45
46
47
48
15
32
31
24
13
22
1
2
Receive Data: RXD[3:0] is driven by the PHY synchronously with respect
to RX_CLK.
Carrier Sense: Asynchronous signal CRS is asserted by the PHY when
either the transmit or receive medium is non-idle.
Receive Data Valid: RX_DV is driven by the PHY synchronously with
respect to RX_CLK. Asserted high when valid data is present on RXD
[3:0].
Receive Error: RX_ER is driven by PHY and synchronous to RX_CLK, is
asserted for one or more RX_CLK periods to indicate to the port that an
error has detected.
Receive Clock: RX_CLK is a continuous clock that provides the timing
reference for the transfer of the RX_DV,RXD[3:0] and RX_ER signals from
the PHY to the MII port of the MAC.
Collision: this signal is driven by PHY when collision is detected.
Transmit Enable: TX_EN is transition synchronously with respect to the
rising edge of TX_CLK. TX_EN indicates that the port is presenting
USB Data Plus Pin
USB Data Minus Pin
EEPROM Chip Select : EEPROM chip select signal.
EEPROM Clock : Signal connected to EEPROM clock pin.
EEPROM Data In : Signal connected to EEPROM data input pin.
EEPROM Data Out : Signal connected to EEPROM data output pin.
7
PU
PD
P
DESCRIPTION
DESCRIPTION
DESCRIPTION
ASIX ELECTRONICS CORPORATION
Pull Up
Pull Down
Power Pin
PRELIMINARY
CONFIDENTIAL