RC64474™
RC64475™
RISControllerTM Embedded
64-bit Microprocessor, based on
RISCore4000TM
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Software compatible with entire RISController Series of
Embedded Microprocessors
Features
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High performance 64-bit microprocessor, based on the
RISCore4000
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Industrial temperature range support
Active power management
Powers down inactive units, through sleep-mode feature
100% pin compatibility between RC64574, RC64474 and
RC4640
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Minimized branch and load delays, through streamlined
5-stage scalar pipeline.
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Single and double precision floating-point unit
125 peak MFLOP/s at 250 MHz
330 Dhrystone MIPS at 250 MHz
Flexible RC4700-compatible MMU
Joint TLB on-chip, for virtual-to-physical address mapping
100% pin compatibility between RC64575, RC64475 and
RC4650
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RC64474 available in 128-pin QFP package, for 32-bit only
systems
On-chip two-way set associative caches
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16KB instruction cache (I-cache)
16KB data cache (D-cache)
RC64475 available in 208-pin QFP package, for full 64/32 bit
systems
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Optional I-cache and D-cache locking (per set), provides
improved real-time support
Simplified board-level testing, through full Joint Test Action
Group (JTAG) boundary scan
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Enhanced, flexible bus interface allows simple, low-cost
design
Windows® CE compliant
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64-bit Bus Interface option, 1000MB/s bandwidth support
32-bit Bus Interface option, 500MB/s bandwidth support
SDRAM timing protocol, through delayed data in write cycles
RC4000/RC5000 family bus-protocol compatibility
Bus runs at fraction of pipeline clock (1/2 to 1/8)
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Implements MIPS-III Instruction Set Architecture (ISA)
3.3V core with 3.3V I/O
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Block diagram
System Control
Coprocessor
(CPO)
330 MIPS
64-bit
125 MFLOPS
Single/Double
Precision
RISCore4000
CPU Core
FPA
Control Bus
Data Bus
Instruction Bus
16KB
Instruction Cache
16KB
Data Cache
32-/64-bit
(Lockable)
(Lockable)
Synchronized
System
Interface
The IDT logo is a registered trademark and RC32134, RC32364, RC64145, RC64474, RC64475, RC4650, RC4640, RC4600,RC4700 RC3081, RC3052, RC3051, RC3041, RISController, and RISCore are trade-
marks of Integrated Device Technology, Inc.
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April 10, 2001
DSC 4952
2001 Integrated Device Technology, Inc.