l-fw322-06-db ETC-unknow, l-fw322-06-db Datasheet - Page 19

• Manufacturer Part Number: l-fw322-06-db
• Description: Phy/link Open Host Controller Interface
• Manufacturer: ETC-unknow

Data Sheet, Rev. 1
December 2005
Pin Information
Table 1. Pin Descriptions (continued)
* Active-low signals within this document are indicated by an N following the symbol names.
Agere Systems Inc.
100
101
102
103
104
Pin
92
93
94
95
96
97
98
99
TPBIAS1
TPBIAS0
Symbol*
TPB1–
TPB1+
TPB0–
TPB0+
TPA1–
TPA1+
TPA0–
TPA0+
V
V
V
DDA
SSA
SSA
(continued)
Analog I/O
Analog I/O
Analog I/O
Analog I/O
Analog I/O
Analog I/O
Type
—
—
—
Analog Circuit Ground. All V
a low-impedance ground plane.
Analog Circuit Ground. All V
a low-impedance ground plane.
Analog Circuit Power. V
the device.
Port 1, Port Cable Pair B. TPB1± is the port B connection to the
twisted-pair cable. Board traces from each pair of positive and nega-
tive differential signal pins should be kept matched and as short as
possible to the external load resistors and to the cable connector.
When the FW322’s 1394 port pins are not wired to a connector, the
unused port pins may be left unconnected. Internal connect-detect
circuitry will keep the port in a disconnected state.
Port 1, Port Cable Pair A. TPA1± is the port A connection to the
twisted-pair cable. Board traces from each pair of positive and nega-
tive differential signal pins should be kept matched and as short as
possible to the external load resistors and to the cable connector.
When the FW322’s 1394 port pins are not wired to a connector, the
unused port pins may be left unconnected. Internal connect-detect
circuitry will keep the port in a disconnected state.
Port 1, Twisted-Pair Bias. TPBIAS1 provides the 1.86 V nominal
bias voltage needed for proper operation of the twisted-pair cable
drivers and receivers and for sending a valid cable connection signal
to the remote nodes. When the FW322’s 1394 port pins are not
wired to a connector, the unused port pins may be left unconnected.
Internal connect-detect circuitry will keep the port in a disconnected
state.
Port 0, Port Cable Pair B. TPB0± is the port B connection to the
twisted-pair cable. Board traces from each pair of positive and nega-
tive differential signal pins should be kept matched and as short as
possible to the external load resistors and to the cable connector.
When the FW322’s 1394 port pins are not wired to a connector, the
unused port pins may be left unconnected. Internal connect-detect
circuitry will keep the port in a disconnected state.
Port 0, Port Cable Pair A. TPA0± is the port A connection to the
twisted-pair cable. Board traces from each pair of positive and nega-
tive differential signal pins should be kept matched and as short as
possible to the external load resistors and to the cable connector.
When the FW322’s 1394 port pins are not wired to a connector, the
unused port pins may be left unconnected. Internal connect-detect
circuitry will keep the port in a disconnected state.
Port 0, Twisted-Pair Bias. TPBIAS0 provides the 1.86 V nominal
bias voltage needed for proper operation of the twisted-pair cable
drivers and receivers and for sending a valid cable connection signal
to the remote nodes. When the FW322’s 1394 port pins are not
wired to a connector, the unused port pins may be left unconnected.
Internal connect-detect circuitry will keep the port in a disconnected
state.
PCI PHY/Link Open Host Controller Interface
DDA
Description
supplies power to the analog portion of
SSA
SSA
signals should be tied together to
signals should be tied together to
FW322 06 1394a
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