TI380PCIA Datasheet, PDF (3/40 Pages) Texas Instruments – PCI BUS INTERFACE FOR THE TI380 COMMPROCESSORS

TI380PCIA
PCI BUS INTERFACE FOR THE TI380 COMMPROCESSORS™
SPWS035 – JUNE 1997
block diagram
TI380PCIA can connect to up to four devices in a system: the PCI bus, the SIF bus, an optional serial EEPROM,
and an optional boot ROM. The major blocks of the TI380PCIA include the PCI Interface (PCIIF ), SIF, and ROM
Interface (ROMIF ) as shown in Figure 2.
ICT DB9 / UTP
MBCLK1
MADH00 –0 7
MBIAEN
AD31 – AD00
C/BE3 – C/BE0
DEVSEL
FRAME
GNT
IDSEL
INTA
IRDY
PAR
PCLK
RST
REQ
PERR
SERR
STOP
TRDY
Local Memory
Bus Check
Burned-In
Address
Emulation
Interface
(BIF)
PCI Interface
(PCIIF)
Controls
Communication
Between
TI380PCIA
and PCI Bus
64-Byte FIFO
System Interface
(SIF)
Controls
Communication
Between
TI380C2x† and
the TI380PCIA
I2C Serial
EEPROM
Interface
(EIF)
ROM Interface
(ROMIF)
EDIO
EDC
† _{TI380C3x devices can be used with TI380PCIA in the same way as TI380C2x devices.}
Figure 2. TI380PCIA Block Diagram
MAX2
MAX0
MROMEN
SADH0 – SADH7
SADL0 – SADL7
SRNW
SDTACK
SBRLS
SBRQ
SHALT
SDBEN
SALE
SXAL
SOWN
SBCLK
SUDS
SLDS
SIRQ
SBGR
SBERR
SAS
SRESET
SRS0 – SRS1
SRSX
SCS
ROMA08 – ROMA15
ROMA00 – ROMA07
ROMCS
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443
3