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Электронный компонент: IDT7M9230

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1999 Integrated Device Technology, Inc.
DSC-4272/1
FEBRUARY 1999
155Mbps ABR ATM Adapter
Family in PCI Mezzanine
Card (PMC) Form-Factor
PRELIMINARY
IDT7M9230 / IDT7M9240
IDT7M9231 / IDT7M9241
IDT7M9232 / IDT7M9242
FEATURES:
Bus Interface: 33Mhz, 5V, 32-bit PCI bus version 2.1
Electrical Compliance
Form-Factor: Single-Size Common Mezzanine Card (74mm x
149mm). Full Dimensional Compliance to Common Mezzanine
Card Specification IEEE P1386 v.2.0.
155Mbps Fiber optical interface supporting up to 4K VC's.
- Multimode (7M9230)
- Single mode intermediate distance(7M9231)
- Single mode long distance (7M9232)
155Mbps Fiber optical interface supporting up to 16K VC's.
- Multimode (7M9240)
- Single mode intermediate distance(7M9241)
- Single mode long distance (7M9242)
Consult factory for availability of UTP-5 interface version
Full Software Compatibility with IDT77924 and IDT77925 ATM
reference cards
Third Party Software available:
- Harris & Jeffries
Soft-ATM
TM
Family of Protocol Products
Porting files for VxWorks
TM
and pSOS
TM
888 Washington Street
Dedham, MA 02026
(617) 329-3200 acooley@hjinc.com
DESCRIPTION:
The IDT7M9230/31/32/40/41/42 provides reliable, high performance
Asynchronous Transfer Mode connectivity with Available Bit Rate (ABR)
support for PCI Mezzanine Card (PMC)-based systems. The IDT7M9230/
31/32/40/41/42 is designed for mechanical and electrical compliance with
the Common Mezzanine Card Specification (IEEE1386) and the PCI
Mezzanine Card Specification (IEEE1386.1). This low-profile I/O card is
ideally suited to serve as an ATM Uplink on a Fast Ethernet switch or as ATM
I/O card mounted on a standard VME or Compact PCI Single Board
Computer.
OVERVIEW:
The central component of the IDT7M9230/31/32/40/41/42 is the
IDT77252ABR NICSTARTM Segmentation and Reassembly (SAR) control-
ler. The IDT77252ABR SAR connects directly to the PCI bus, a private
SRAM/EPROM bus, and the Utopia PHY interface. The IDT77252ABR's
PCI bus master interface provides efficient, low latency DMA transfer
capability over PCI. For further information on the IDT77252ABR refer to
the IDT77252ABR Datasheet located on the IDT website (www.idt.com).
The IDT77155 PHY chip provides the SONET/SDH processing and ATM
mapping functions of a 155Mbps ATM User Network Interface. The
IDT77155 provides both Transmission Convergence (TC) and Physical
Media Dependent (PMD) sublayer functions and supports a UTOPIA
interface. For further information on the IDT77155 refer to the IDT77155
Datasheet located on the IDT website(www.idt.com).
4272 drw 01
SER IAL
E2PROM
77 252
SA R
PC I B US, 32 -b it, 33 M h z,
5V
32
RxUTOPIA Bus
TxU TOPIA Bus
Utility Bus
8
8
8
19.44
M hz
Osc
OD L
80
M hz
Osc
SR AM
77 155
PH Y
32
PR O M
(O P T IO N AL )
8
- Advancenet Systems Inc.
WindowsNT
TM
and Windows95
TM
Drivers
406 Timbermill Rd.
Durham, NC 27713
(919) 544-5601 j.hartford@ieee.org
BLOCK DIAGRAM
2
1999 Integrated Device Technology, Inc.
DSC-4272/1
IDT
IDT7M9230/31/32/40/41/42
PIN ASSIGNMENTS
The 32-bit PCI bus is implemented in two 64-pin headers (PN1 & PN2)
in compliance with the PMC Specification and is provided below.
4272 tbl 01
4272 tbl 02
NOTES:
1. These signals are not connected (NC) on the IDT7M9230/31/32/40/41/42.
2. +3.3V is not used by the IDT7M9230/31/32/40/41/42; however, it is decoupled
on the board.
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CORPORATE HEADQUARTERS
for SALES:
for Tech Support:
2975 Stender Way
800-345-7015
408-988-5647
Santa Clara, CA 95054
fax: 408-492-8674
ssdhelp@idt.com
www.idt.com
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
BOARD DIMENSIONS
4272 drw 02
4272 drw 03
ORDERING INFORMATION
NOTES:
1. All dimensions in millimeters.
X
Pow e r
X
Spe ed
X
Packag e
X
Process/
Te m pe rature
R an ge
Bla nk
M
PM C -Sta nd ard PCI C onn ectio n
S
Sta nd ard Config uratio n
XXX XX
D evice
Type
7M 92 30
7M 92 31
7M 92 32
U p to 4 K VC 's
15 5 M b/s ATM Ada pte r-M ultim od e
15 5 M b/s A TM A da pte r-Interm e diate D istan ce S ing le M o de
15 5 M b/s ATM Ada pte r-Lo ng Dista nce Sing le M od e
ID T
15 5
Spe ed in M e ga bits/Se co nd
C om m ercial (0 C to +70 C )
U p to 1 6K VC 's
15 5 M b/s ATM Ada pte r-M ultim od e
15 5 M b/s A TM A da pte r-Interm e diate D istan ce S ing le M o de
15 5 M b/s ATM Ada pte r-Lo ng Dista nce Sing le M od e
7M 92 40
7M 92 41
7M 92 42
.
7 7 15 5
P H Y
P N 1
P N 2
1 9 .4 4
M h z
O s c
7 3 .8 7 3
7 4 .1 2 7
1 4 8.8 73
1 4 9.1 27
O D L
7 7 25 2 S AR
8 0 M h z
O sc
E E P R O M
P A L
S R A M
S R A M
S R A M
S R A M
P R O M
F ront P anel V iew
T op V ie w
1 3 .1 5
1 2 .6 5
1 0 .0 0
M A X