L-FW323-06-DB AGERE [Agere Systems], L-FW323-06-DB Datasheet - Page 6

• Manufacturer Part Number: L-FW323-06-DB
• Description: PCI PHY/Link Open Host Controller Interface
• Manufacturer: AGERE [Agere Systems]

FW323 06 1394a
PCI PHY/Link Open Host Controller Interface
Features
Other Features
FW323 Functional Overview
The FW323 is a high-performance, PCI bus-based open host controller designed by Agere Systems Inc. for imple-
mentation of IEEE 1394a-2000 compliant systems and devices. Link-layer functions are handled by the FW323, uti-
lizing the on-chip 1394a-2000 compliant link core and physical layer core. A high-performance and cost-effective
solution for connecting and servicing multiple IEEE 1394 (both 1394-1995 and 1394a-2000) peripheral devices can
be realized using this PHY/link OHCI device.
FW323 Functional Description
The FW323 is comprised of four major functional sections (see Figure 1): PCI core, OHCI isochronous and
asynchronous data transfer, link core, and PHY core. The following is a general description of each of the major
sections.
6 6
I
CMOS process
3.3 V operation, 5 V tolerant inputs
NAND tree test mode
2
C serial ROM interface
(continued)
BUS
PCI
ROM
I/F
CORE
PCI
Figure 1. FW323 Conceptual Block Diagram
ASYNCHRONOUS
ISOCHRONOUS
TRANSFER
TRANSFER
DATA
DATA
OHCI
OHCI
CORE
LINK
CORE
PHY
CABLE PORT 2
CABLE PORT 1
CABLE PORT 0
Data Sheet, Rev. 1
December 2005
Agere Systems Inc.
5-6250 (F).f