28
8575
8575
A N/B Maintenance
A N/B Maintenance
The µPD72872 is NEC’s 1-chip solution of an OHCI-LINK layer controller and a two port, physical layer
implementation compliant to P1394a specification draft 2.0. It supports the connection with transmission
speeds up to 400Mbps. The two-port shrink version of the µPD72870 chip with PCI/CardBus Interface offers a
compact and low-cost solution for implementing applications in PC, PC-Cards as µPD72872 supports the 1394
Open Host Controller Interface 1.0
1.2.6 IEEE1394 : NEC µPD72872 OHCI-Link Layer Controller
Features
Link Layer compliant with 1394 Open Host Controller Interface specification release 1.0 Physical layer
compliant with definition in P1394a draft 2.0 (Data Rate 100/200/400 Mbps)
Selectable active port number (1, 2 ports)
Modular 32-bit host interface compliant with PCI specification release 2.1
Supports PCI Bus Power Management Interface specification release 1.1
Modular 32-bit host interface compliant with CardBus specification
Cycle Master and Isochronous Resource Manager support
32-bit CRC generation and checking for receive/transmit packets
Supports 4 isochronous transmit DMAs and 4 isochronous receive DMAs
2-wire Serial EEPROM™ interface supported