LAN9730 Datasheet, PDF (13/222 Pages) SMSC Corporation – High-Speed Inter-Chip (HSIC) USB 2.0

LAN9730/LAN9730i
TABLE 2-1: MII INTERFACE PINS (CONTINUED)
Num Pins
Name
1
Transmit
Clock
(Internal PHY
Mode)
Symbol
TXCLK
Buffer
Type
IS/O8
(PU)
Transmit
Clock
(External
PHY Mode)
TXCLK
1
Carrier Sense
(Internal PHY
Mode)
CRS
IS
(PU)
IS/O8
(PU)
Carrier Sense
(External
PHY Mode)
CRS
General Pur-
pose I/O 3
(Internal PHY
Mode Only)
GPIO3
1
MII Collision
Detect
(Internal PHY
Mode)
COL
MII Collision
Detect
(External
PHY Mode)
General Pur-
pose I/O 0
(Internal PHY
Mode Only)
COL
GPIO0
IS
(PD)
IS/O8/
OD8
(PU)
IS/O8
(PU)
IS
(PD)
IS/O8/
OD8
(PU)
Description
In Internal PHY Mode, this pin can be configured
to display the respective internal MII signal. Refer
to the Internal MII Visibility Enable (IME) bit of the
Hardware Configuration Register (HW_CFG) on
page 125 for additional information.
In External PHY Mode, this pin is the transmitter
clock input from the external PHY.
In Internal PHY Mode, this pin can be configured
to display the respective internal MII signal. Refer
to the Internal MII Visibility Enable (IME) bit of the
Hardware Configuration Register (HW_CFG) on
page 125 for additional information.
In External PHY Mode, the signal on this pin is
input from the external PHY and indicates a net-
work carrier.
This General Purpose I/O pin is fully programma-
ble as either a push-pull output, an open-drain
output or a Schmitt-triggered input.
In Internal PHY Mode, this pin can be configured
to display the respective internal MII signal. Refer
to the Internal MII Visibility Enable (IME) bit of the
Hardware Configuration Register (HW_CFG) on
page 125 for additional information.
In External PHY Mode, the signal on this pin is
input from the external PHY and indicates a colli-
sion event.
This General Purpose I/O pin is fully programma-
ble as either a push-pull output, an open-drain
output or a Schmitt-triggered input.
Note:
This pin may be used to signal PME
when Internal PHY and PME Modes of
operation are in effect. Refer to Chapter
5.0, "PME Operation" for additional
information.
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DS00001946A-page 13