MB86961A Datasheet, PDF (5/29 Pages) Fujitsu Component Limited. – UNIVERSAL INTERFACE FOR 10BASET

MB86961A
SIGNAL DESCRIPTIONS (Continued)
Symbol
RCMPT
RJAB
RLD
RXD
TCLK
TEN
TEST
TPIP
TPIN
TPOPA/B
TPONA/B
TXD
UTP
VCC1, VCC2
GND1
GND2
Type
O
O
O
O
O
I
I
O
O
O
O
I
I
—
—
—
Description
REMOTE COMPATIBILITY: Output goes high to signal the controller that the remote
port is compatible with the MB86961A remote signaling features.
REMOTE JABBER: Output goes high to signal the controller that the remote port is
in Jabber condition.
REMOTE LINK DOWN: Output goes high to signal to the controller that the remote
port is in link down condition.
RECEIVE DATA: Output signal connected directly to the receive data input of the
controller.
TRANSMIT CLOCK: A 10 MHz clock output. This clock signal is directly connected
to the transmit clock input of the controller.
TRANSMIT ENABLE: Enables data transmission and starts the watchdog timer.
Synchronous with TCLK (see Figures 14, 20, 26, and 32 for details).
TEST: Input for factory test of the device. Leave open for normal operation.
RECEIVE TWISTED-PAIR: A differential input pair from the twisted-pair cable.
Receive filter is integrated in-chip. No external filters are required.
TRANSMIT TWISTED PAIR: Two differential driver pair outputs (A and B) to the
twisted-pair cable. The output is pre-equalized, no external filter is required. Two
pairs are used to provide compatibility with both 100 Ω load cable and 150 Ω load
cable.
TRANSMIT DATA: Input signal containing NRZ data to be transmitted on the net-
work. TXD is connected directly to the transmit data output of the controller.
UTP/STP: When UTP=0, 150 Ω termination for shielded TP is selected. When
UTP=1,100 Ω termination for unshielded TP is selected.
POWER INPUTS: +5V power supply inputs.
GROUND RETURNS 1 & 2: Grounds
5