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Электронный компонент: 82380-25

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290558-001
Intel 380AB/PB Dock Set Product Overview
82380AB Mobile PCI-To-ISA Bridge (MISA)
82380PB Mobile PCI-To-PCI Bridge (MPCI)
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Information in this document is provided in connection with Intel products. Intel assumes no liability whatsoever, including infringement of any patent or
copyright, for sale and use of Intel products except as provided in Intel's Terms and Conditions of Sale for such products. Information contained herein
supersedes previously published specifications on these devices from Intel.
Intel retains the right to make changes to these specifications at any time, without notice.
Other brands and names are the property of their respective owners.
Since publication of documents referenced in this document, registration of the Pentium and iCOMP trademarks has been issued to Intel Corporation.
Copyright INTEL CORPORATION 1996
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1
82380AB Mobile PCI-To-ISA Bridge (MISA) and
82380PB Mobile PCI-To-PCI Bridge (MPCI)
MPCI:
n
PCI-to-PCI Bridge (MPCI)
Efficient Repeater Architecture. Mirrors All
Transactions Across the Bridge
Supports the PCI Bus Enumeration Mechanism
for PCI-To-PCI Bridges
Supports a 5V Desktop PCI Interface for up to
Four Bus Master PCI Add-In Card Slots on the
Secondary PCI Bus
The MISA PCI-To-ISA Bridge Allows a Docking
Station to have Three ISA Slots
PC/PCI DMA Protocol and PCI Docking Interface
Creates a Very Low Pin Count Docking
Connector
n
Full Docking Support (MPCI)
Hot Docking: No Preconditioning--On, Off, or
Suspended
Undocking Mechanism Guarantees a Safe
Notebook
The Same Docking Station can be used with 5V
and 3.3V Notebooks
Supports Automatic Isolation of all Active
Docking Connector Signals
Support for Both Desktop (A/C Powered) and
Mobile (Battery Powered) Docking Stations
Non-Volatile Memory Interface to Store Docking
Identification, and Notebook Configuration
Information
n
Full Power Management Support for Mobile
Docking Stations (MPCI)
Suspend (Powered-On, to DRAM, and to Disk)
Resume
PCI Clockrun Protocol
Powered-On Suspend/Resume Mode for A/C
Powered Desktop Docking Stations
Low Power Mode Support for Undocked Mobile
Docking Stations
n
208-lead SQFP Package for the 82380PB MPCI
MISA:
n
PCI-to-ISA Bridge (MISA)
PCI Bus up to 33 MHz
ISA Bus up to 8.33 MHz
5 Volt ISA and PCI Interfaces
Full ISA Support Including ISA Masters
PC/PCI DMA Protocol for Software Transparent,
Low Pin-Count DMA on ISA
Supports 3 ISA Slots
n
160-lead MQFP Package for the 82380AB MISA
The Intel 380AB/PB Dock Set (380AB/PB) consists of the 82380AB Mobile PCI-to-ISA Bridge (MISA) and the 82380PB
Mobile PCI-to-PCI Bridge (MPCI). The 380AB/PB supports four PCI slots and three ISA slots. The MPCI and MISA can
also be used individually to provide either PCI or ISA slot expansion.
The 380PB MPCI provides a PCI-to-PCI bridge to a 5V PCI desktop style add-in bus. Internal arbitration supports four bus
masters on the secondary PCI bus.
The Docking Control logic controls all docking and undocking sequences. The Quiet Dock isolation interface allows Hot-
Insertion into the docking station. The MPCI supports the PCI bus enumeration mechanism for PCI-to-PCI bridges. This is
needed to support the Windows 95* dynamic configuration of system resources when the system docks or undocks. The
E
2
PROM interface logic provides an industry standard interface to a non-volatile memory device (E
2
PROM) for supporting
dynamic autoconfiguration of a previously configured notebook/docking station combination. The power management
logic provides a control and status interface between the docking station and notebook that allows the docking station to
know and control the state of the notebook.
The MPCI's subtractive decoding guarantees that all accesses targeted for a down stream ISA bridge (such as the MISA)
arrive at their destination. Software does not need to determine the devices on the ISA bridge and then program positive
decode ranges (as is needed on traditional positive decode bridges).
The MISA generates all the signals necessary to support a full 5V ISA bus. MISA supports the Mobile PC/PCI DMA
protocol to provide full ISA DMA support in a 2-wire interface.
82380AB (MISA) and 82380PB (MPCI)
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2
Secondary
PCI
Interface
Primary
PCI
Interface
CD[2:1]#
Primary
PCI
Arbitration
Primary
PCI
Clocks&
Reset
Primary
PC/PCI
Arbitration
S_PAR
S_C/BE[3:0]#
S_AD[31:0]
S_DEVSEL#
S_LOCK#
S_STOP#
S_IRDY#
S_TRDY#
S_FRAME#
S_PERR#
S_SERR#
Secondary
PCI
Clocks&
Reset
Secondary
PCI
Arbitration
Secondary
PC/PCI
Arbitration
S_RST#
S_CLKIN
S_CLKOUT[0:4]
S_CLKRUN#
S_REQ[3:0]#
S_GNT[3:0]#
S_PCPIREQ#
S_PCPIGNT#
Docking
Control
MISA
Interface
E2PROM
Interface
P_RST#
P_CLK#
P_CLKRUN#
P_PCPIREQ#
P_PCPIGNT#
P_REQ#
P_GNT#
P_DEVSEL#
P_PAR
P_LOCK#
P_STOP#
P_IRDY#
P_TRDY#
P_FRAME#
P_C/BE[3:0]#
P_AD[31:0]
P_IDSEL
P_SERR
NOGO
MISAEN
SCS
SCK
SDIN
SDOUT
SUSSTAT#
SRBTN#
Power
Mngt.
DSTYP
DCKINTR#
NBPWROK#
QPCIEN#
QVCCEN[2:0]#
OPENREQ
OPEN
DSPWG
DOCKCLK
MPCI_BLK.DRW
Figure 1. MPCI Block Diagram
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82380AB (MISA) and 82380PB (MPCI)
3
ISA
Bus
Interface
PCI
Interface
PC/PCI
Inteface
PCI
Clocks&
Reset
Docking
Station
Power
Good
PCIRST#
PCICLK
ISAREQ#
ISAGNT#
DEVSEL#
PAR
STOP#
IRDY#
TRDY#
FRAME#
C/BE[3:0]#
AD[31:0]
IDSEL
SERR
DSPWRGD
DREQ[7:5,3:0]#
DACK[7:5,3:0]#
TC
MPCI
Interface
ISA
Clocks&
Reset
MEMW#
SMEMR#
SMEMW#
ZEROWS#
IOCHRDY
AEN
BALE
SA[19:0]
IOW#
IOR#
IOCHK#
IOCS16#
SBHE#
MEMCS16#
MEMR#
SD[15:0]
MASTER#
REFRESH
RSTDRV
SYSCLK
LA[23:17]
NOGO
MISA_BLK.DRW
Figure 2. MISA Block Diagram