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R-Car E1 - Renesas
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Revision as of 13:06, 21 July 2017 by BCD (talk | contribs)

Template:mpu R-Car E1 is an entry-level performance embedded SoC for the automotive industry designed by Renesas and introduced in 2011. The E1 features a single Cortex-A9 core operating at 533 MHz. This chip incorporates Imagination's PowerVR SGX531 GPU operating at 177 MHz. This SoC supports up to 1 GiB of DDR3-1066 memory.

Announced in mid-2011, Renesas expected the E1 to begin mass production in June 2012 and reach a rate of 100,000 units per month in June 2013.

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]

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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

Expansions

[Edit/Modify Expansions Info]

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Expansion Options
USB
Revision2.0
Ports2
Rate480 Mbps
UART
Ports8
SATA
Revision3.0
Ports1
I²C
Ports4

GP I/OYes
JTAGYes
  • MLB (MOST150) 6-Pin I/F
  • 2 x CAN 32 Message Buffers
  • MMC
  • 3 x SD

Graphics

[Edit/Modify IGP Info]

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Integrated Graphics Information
GPUPowerVR SGX531
DesignerImagination Technologies
Execution Units1Max Displays2
Frequency177 MHz
0.177 GHz
177,000 KHz

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

Block Diagram

r-car e1 block.png
Facts about "R-Car E1 - Renesas"
has ecc memory supportfalse +
integrated gpuPowerVR SGX531 +
integrated gpu base frequency177 MHz (0.177 GHz, 177,000 KHz) +
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 +