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1.4 Features Summary
1-4
The following are the key features of the SYM53C040 as they relate to
flexibility, integration, ease of use, reliability and performance.
•
Supports the SAF-TE protocol in SCSI environments, and the SES
protocol in either SCSI or Fibre Channel environments
•
Two SFF-8067 interfaces provided for Fibre Channel Enclosure
applications
•
28 multipurpose I/O pins and 24 multipurpose LED drivers for flexible
configurations
•
Two programmable LED blink rates
•
Watchdog timer with time-out values programmable between 20 ms
and 300 ms
•
Two on-chip timers external to the microcontroller
•
Downloadable/upgradable firmware
•
On-chip SE and LVD SCSI transceivers for direct attach to either LVD
or SE SCSI bus
•
16 Kbytes of onboard static RAM
•
Two multimaster, two-wire serial interfaces for automatic download of
external firmware, and access to external two-wire serial peripherals
•
Integrated 80C32 (MCS 51 compatible) microcontroller
•
160-pin QFP or 169-ball BGA packaging
•
Two-wire serial interface for automatic download of external firmware
•
Full featured SAF-TE firmware provided by LSI Logic
•
Proven SYM53C80 core for basic SCSI protocol management
•
16 mA open drain LED drivers
•
5 Volt tolerant inputs (except DIFFSENS)
•
IEEE 1149.1 JTAG compliant
•
Hardware DMA function for increased SCSI throughput
•
Support for 11 LVD SCSI IDs (0–7 plus three high IDs)
Introduction
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