Philips Semiconductors
Preliminary data
1-port 400 Mbps physical layer interface
PDI1394P25
1.0 FEATURES
•
Fully supports provisions of IEEE 1394–1995 Standard for high
performance serial bus and the P1394a–2000
the IEEE 1394
Standard.
2
Standard
1
•
Supports extended bias-handshake time for enhanced
interoperability with camcorders
•
Fully interoperable with Firewire™ and i.LINK™ implementations of
•
Full P1394a support includes:
–
Connection debounce
–
Arbitrated short reset
–
Multispeed concatenation
–
Arbitration acceleration
–
Fly-by concatenation
–
Port disable/suspend/resume
•
Interface to link-layer controller supports both low-cost bus-holder
isolation and optional Annex J electrical isolation
•
Data interface to link-layer controller through 2/4/8 parallel lines at
49.152 MHz
•
Low-cost 24.576 MHz crystal provides transmit, receive data at
100/200/400 Mbps, and link-layer controller clock at 49.152 MHz
•
Does not require external filter capacitors for PLL
•
Interoperable with link-layer controllers using 3.3 V and 5 V
supplies
•
Provides one 1394a fully-compliant cable port at
100/200/400 Mbps. Can be used as a one port PHY without the
use of any extra external components
•
Interoperable with other Physical Layers (PHYs) using 3.3 V and
5 V supplies
•
Fully compliant with Open HCI requirements
•
Cable ports monitor line conditions for active connection to remote
node.
•
Node power class information signaling for system power
management
•
Power down features to conserve energy in battery-powered
applications include:
–
Automatic device power down during suspend
–
Device power down terminal
–
Link interface disable via LPS
–
Inactive ports powered-down
•
Cable power presence monitoring
•
Separate cable bias (TPBIAS) for each port
•
Register bits give software control of contender bit, power class
bits, link active bit, and 1394a features
•
LQFP package is function and pin compatible with the Texas
Instruments TSB41LV01E™ and TSB41AB1™ (PAP package)
400 Mbps PHYs.
•
Logic performs system initialization and arbitration functions
•
Encode and decode functions included for data-strobe bit level
encoding
2.0 DESCRIPTION
The PDI1394P25 provides the digital and analog transceiver functions
needed to implement a one port node in a cable-based IEEE
1394–1995 and/or 1394a network. Each cable port incorporates two
differential line transceivers. The transceivers include circuitry to
monitor the line conditions as needed for determining connection
status, for initialization and arbitration, and for packet reception and
transmission. The PDI1394P25 is designed to interface with a Link
Layer Controller (LLC), such as the PDI1394L40 or PDI1394L41.
•
Incoming data resynchronized to local clock
•
Single 3.3 volt supply operation
•
Minimum V
DD
of 2.7 V for end-of-wire power-consuming devices
•
While unpowered and connected to the bus, will not drive TPBIAS
on a connected port, even if receiving incoming bias voltage on
that port
3.0 ORDERING INFORMATION
PACKAGE
64-pin plastic LQFP
64-ball plastic LFBGA
TEMPERATURE RANGE
0 to +70°C
0 to +70°C
ORDER CODE
PDI1394P25BD
PDI1394P25EC
PKG. DWG. #
SOT314-2
SOT534-1
1.
2.
Implements technology covered by one or more patents of Apple Computer, Incorporated and SGS Thompson, Limited.
Firewire is a trademark of Apple Computer Inc. i.LINK is a trademark of Sony.
2001 Sep 06
2
PHILIPS [ NXP SEMICONDUCTORS ]
