1-port 400 Mbps physical layer interface

 

 

FEATURES

 Fully supports provisions of IEEE 1394–1995 Standard for high

performance serial bus and the P1394a–2000 Standard

1 Fully interoperable with Firewire? and i.LINK? implementations of

the IEEE 1394 Standard.

2 Full P1394a support includes:

 Connection debounce

 Arbitrated short reset

 Multispeed concatenation

 Arbitration acceleration

 Fly-by concatenation

 Port disable/suspend/resume

 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

 Fully compliant with Open HCI requirements

 Cable ports monitor line conditions for active connection to remote

node.

 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

 Logic performs system initialization and arbitration functions

 Encode and decode functions included for data-strobe bit level

encoding

 Incoming data resynchronized to local clock

 Single 3.3 volt supply operation

 Minimum VDD 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

 

 Supports extended bias-handshake time for enhanced

interoperability with camcorders

 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

 Interoperable with other Physical Layers (PHYs) using 3.3 V and

5 V supplies

 Node power class information signaling for system power

management

 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.

 

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