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R-Car L1 - Renesas
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R-Car L1
General Info
DesignerRenesas,
ARM Holdings
ManufacturerTSMC
Model NumberL1
MarketEmbedded
General Specs
FamilyR-Car
Series1st Gen
Frequency400 MHz
Microarchitecture
ISAARMv7 (ARM)
MicroarchitectureCortex-A9
Core NameCortex-A9
Process40 nm
TechnologyCMOS
Word Size32 bit
Cores1
Threads1
Max Memory1 GiB
Multiprocessing
Max SMP1-Way (Uniprocessor)
Electrical
Vcore1.2 V
VI/O3.3 V
Packaging
PackageFCBGA-429 (BGA)
Dimension18 mm x 18 mm
Pitch0.80 mm
Ball Count429
InterconnectBGA-429

R-Car L1 is a performance embedded SoC for the automotive industry designed by Renesas. The L1 features a single Cortex-A9 core operating at 400 MHz. This chip incorporates Imagination's PowerVR SGX531 GPU. This SoC supports up to 1 GiB of DDR3-1066 memory.

  • Note: It's unknown if this model was ever actually released.


Cache

Main article: Cortex-A9 § Cache

[Edit/Modify Cache Info]

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Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.
L1$64 KiB
65,536 B
0.0625 MiB
L1I$32 KiB
32,768 B
0.0313 MiB
1x32 KiB4-way set associative 
L1D$32 KiB
32,768 B
0.0313 MiB
1x32 KiB4-way set associative 

Memory controller

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR3-1066, DDR2-533
Supports ECCNo
Max Mem1 GiB
Controllers1
Channels1
Width32 bit
Max Bandwidth1.99 GiB/s
2,037.76 MiB/s
2.137 GB/s
2,136.746 MB/s
0.00194 TiB/s
0.00214 TB/s
Bandwidth
Single 1.99 GiB/s

Graphics

[Edit/Modify IGP Info]

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Integrated Graphics Information
GPUPowerVR SGX531
DesignerImagination Technologies
Execution Units1

Standards
OpenGL ES2.0

Features

[Edit/Modify Supported Features]

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Supported ARM Extensions & Processor Features
Thumb-2Thumb-2 Extension
ThumbEEThumb Execution Environment Extension
VFPv3Vector Floating Point (VFP) v3 Extension
NEONAdvanced SIMD extension
JazelleDirect Bytecode eXecution
Facts about "R-Car L1 - Renesas"
has ecc memory supportfalse +
integrated gpuPowerVR SGX531 +
integrated gpu designerImagination Technologies +
integrated gpu execution units1 +
l1$ size64 KiB (65,536 B, 0.0625 MiB) +
l1d$ description4-way set associative +
l1d$ size32 KiB (32,768 B, 0.0313 MiB) +
l1i$ description4-way set associative +
l1i$ size32 KiB (32,768 B, 0.0313 MiB) +
max memory bandwidth1.99 GiB/s (2,037.76 MiB/s, 2.137 GB/s, 2,136.746 MB/s, 0.00194 TiB/s, 0.00214 TB/s) +
max memory channels1 +
supported memory typeDDR3-1066 + and DDR2-533 +