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What is UPD72870A?

This electronic component, produced by the manufacturer "NEC", performs the same function as "IEEE1394 1-CHIP OHCI HOST CONTROLLER".


UPD72870A Datasheet PDF - NEC

Part Number UPD72870A
Description IEEE1394 1-CHIP OHCI HOST CONTROLLER
Manufacturers NEC 
Logo NEC Logo 


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PRELIMINARY DATA SHEET
MOS INTEGRATED CIRCUIT
µPD72870A
IEEE1394 1-CHIP OHCI HOST CONTROLLER
The µPD72870A is the LSI which integrated OHCI-Link and PHY function into a single chip.
The µPD72870A complies with the P1394a draft 2.0 specifications and the OpenHCI IEEE1394 1.0, and works up
to 400 Mbps.
It makes design so compact for PC and PC card application.
FEATURES
• Compliant with Link Layer Services as defined in 1394 Open Host Controller Interface specification release 1.0
• Compliant with Physical Layer Services as defined in P1394a draft 2.0 (Data Rate 100/200/400 Mbps)
• Numbers of supported port (1, 2, 3 ports) are selectable
• Compliant with protocol enhancement as defined in P1394a draft 2.0
• Modular 32-bit host interface compliant to PCI Specification release 2.1
• Support PCI-Bus Power Management Interface Specification release 1.0
• Modular 32-bit host interface compliant to Card Bus Specification
• Cycle Master and Isochronous Resource Manager capable
• Built-in FIFOs for isochronous transmit (1024 bytes), asynchronous transmit (1024 bytes), and receive (2048
bytes)
• 32-bit CRC generation and checking for receive/transmit packets
• 4 isochronous transmit DMAs and 4 isochronous receive DMAs supported
• 32-bit DMA channels for physical memory read/write
• Clock generation by 24.576 MHz X’tal
• Internal control and operational registers direct-mapped to PCI configuration space
• 2-wire Serial EEPROMTM interface supported
• Separate power supply Link and PHY
• Programmable latency timer from serial EEPROM in Cardbus mode (CARD_ON = 1)
ORDERING INFORMATION
Part number
µPD72870AGM-8ED
µPD72870AF1-FA2
Package
160-pin plastic LQFP (Fine pitch) (24 x 24)
192-pin plastic FBGA (14 x 14)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S14653EJ1V0DS00 (1st edition)
Date Published January 2000 NS CP (K)
Printed in Japan
2000

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UPD72870A equivalent
Link Block Diagram
µPD72870A
Serial ROM Interface
PCI Controller Interface
(Master, Parity Check & Generator) PCI-DMA IOREG
CSR
(CIS)
PFCOMM
Buf
Byte
Swap
OPCI Internal Bus
PCIS_CNT
PCIS Bus (PCI Slave Bus)
PCICFG
ATDMA
PAU
OPCIBUS_ARB
GRSU
GRQU
ITDMA
IRDMA0-
IRDMA3
SFIDU
Byte
Swap
ATF
Byte
Swap
ITF
ITCF
RF
Byte
Swap
RCF
Link Layer
Core
IOREG
ATDMA
ATF
CIS
CSR
IOREG
IRDMA
ITCF
ITDMA
ITF
OPCIBUS_ARB
PAU
PCICFG
PCIS_CNT
PFCOMM
RCF
RF
SFIDU
: Asynchronous Transmit DMA
: Asynchronous Transmit FIFO
: CIS Register
: Control and Status Registers
: IO Registers
: Isochronous Receive DMA
: Isochronous Transmit Control FIFO
: Isochronous Transmit DMA
: Isochronous Transmit FIFO
: OPCI Internal Bus Arbitration
: Physical Response and Request Unit
: PCI Configuration Registers
: PHY Control Isochronous Control
: Pre Fetch Command FIFO
: Receive Control FIFO
: Receive FIFO
: Self-ID DMA
Preliminary Data Sheet S14653EJ1V0DS00
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for UPD72870A electronic component.


Information Total 30 Pages
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Featured Datasheets

Part NumberDescriptionMFRS
UPD72870The function is IEEE1394 1-CHIP OHCI HOST CONTROLLER. NECNEC
UPD72870AThe function is IEEE1394 1-CHIP OHCI HOST CONTROLLER. NECNEC
UPD72870AF1-FA2The function is IEEE1394 1-CHIP OHCI HOST CONTROLLER. NECNEC

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