l-fw322-06-db ETC-unknow, l-fw322-06-db Datasheet - Page 21

• 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.
Note: For those applications when one or more FW322 ports are not wired to a connector, those unused ports may be left unconnected without
Agere Systems Inc.
118
117
119
120
Pin
normal termination. When a port does not have a cable connected, internal connect-detect circuitry will keep the port in a disconnected state.
VAUX_PRESENT
CARDBUSN
NANDTREE
Symbol*
V
DD
(continued)
Type
—
O
I
I
NAND Tree Test Output. When the chip is placed into the NAND
tree test mode, the pin is the output of the NAND tree logic. This pin
is not used during normal operation.
3.3 Vaux Present. An active-high input indicating whether the
FW322 is powered via an auxiliary power supply (e.g., PCI 3.3 Vaux).
An internal pull-down resistor connected to V
external pull-up is only required when the device is being powered by
an auxiliary power supply. Note that VAUX_PRESENT is not an
actual power supply pin to the device. Rather, this pin is an indicator
of whether the FW322 is powered via an auxiliary power supply
(VAUX_PRESENT = 1) or the regular PCI power supply
(VAUX_PRESENT = 0). This input is used by the FW322 to properly
support the D3cold power management functionality.
Digital Power.
CardBusN (Active-Low). Selects mode of operation for PCI output
buffers. Connect this pin to ground for CardBus operation; connect
to V
DD
for PCI operation.
PCI PHY/Link Open Host Controller Interface
Description
SS
is provided, so an
FW322 06 1394a
21