Avago Technologies LSI53C895A - Manual (Page 19)

New Features in the LSI53C895A 1-3
Figure 1.2 Typical LSI53C895A Board Application
1.1 New Features in the LSI53C895A
The LSI53C895A is a drop-in replacement for the LSI53C895 PCI to
Ultra2 SCSI Controller, with these additional benefits:
•
Supports 32-bit PCI Interface with 64-bit addressing.
•
Handles SCSI phase mismatches in SCRIPTS without interrupting
the CPU.
•
Supports JTAG boundary scanning.
•
Supports RAID ready alternative interrupt signaling.
•
Supports PC99 Power Management.
– Automatically downloads Subsystem Vendor ID, Subsystem ID,
and PCI power management levels D0, D1, D2, and D3.
•
Improves PCI bus efficiency through improved PCI caching design.
•
Transfers Load/Store data to or from 8 Kbytes of internal SCRIPTS
RAM.
68 Pin
SCSI
Wide
Connector
LSI53C895A
32-Bit PCI to
SCSI Controller
Memory Control
Block
Flash EEPROM
Serial EEPROM
PCI Interface
PCI Address, Data, Parity and Control Signals
SCSI Data,
Parity and
Control
Signals
Memory
Address/Data
Bus
GPIO[1:0]