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psp:hardware_specifications [psDevWiki]
Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Los_Angeles' for 'PST/-8.0/no DST' instead in /var/www/psdevWiki/inc/template.php on line 154

Trace: » ge_register_list » api_documentation » controller_library » getting_started » tutorial » ioremap » install » pspsdk_documentation » lpar_address » hardware_specifications

Table of Contents

PSP Hardware Specifications
- CPU
- Bus
- Graphics
- Storage
- Ports

PSP Hardware Specifications

CPU

Allegrex CPU
- MIPS r4000 32-bit core 1-333mhz
- 16kib I-Cache & D-Cache
  - 64-byte line length
  - 2-way set associative, LRU
- No TLB
- 7-stage pipeline
- 32 32-bit registers
- FPU (COP1)
  - 32-bit single precision
  - 32 32-bit registers
  - IEEE 754 compliant
  - Sqrt (28 cycles), div(28 cycles), most others 1 cycle
- VFPU (COP2)
  - Vector FPU “Macromode only”
  - Designed for vector and matrix ops
  - 128 32-bit registers
    - Reconfigurable as scalar, vector or matrix
    - IEEE 754 Single precision float
  - Can also handle 32-bit int, 16-bit int, 8-bit int, half float
  - vmmul.z vd, vs, vt - 4×4 matrix/vector multiply, 22 cycles

Media Block CPU
- MIPS r4000-based core
- 2MB Embedded DRAM
- VME - Virtual Mobile Engine
  - Reconfigurable processor to decode audio & video
  - ATRAC3plus & MP3 for music
    - ATRAC3plus & ADPCM for games but not MP3 due to licensing issues
- AVC H.264 engine
  - MPEG-4 Hardware accelerator
  - Up to 720x480x30fps
    - Libraries support 480x272x29.97fps

Bus

Main bus shared by CPU and Graphics Engine
CPU only has level-1 cache, recomend minimizing memory usage
Cache miss ~70 cycles
VRAM read ~44 cycles
- contention with GE
Scratchpad read ~38 cycles

Graphics

Graphics Engine (GE)
- 2MB Embedded DRAM
- Supports Lighting, skinning (8 weights), morphing, subdivision, pixel operations
- Operates at bus speed (default 111mhz)
- 3.5GB/s Bus bandwidth
- 444 Mpixels/sec fill rate
- 23 Mploys/sec T&L

Storage

UMD
- UMD 1.8 GiB DISC
Memory Stick PRO Duo. (PSPgo: Memory Stick Micro “M2”)
(PSPgo: Internal 16GB NAND flash)

Ports

Serial-Port (RS-232)
- http://mc.pp.se/psp/phones.xhtml

USB-Port

Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Los_Angeles' for 'PST/-8.0/no DST' instead in /var/www/psdevWiki/inc/template.php on line 523
psp/hardware_specifications.txt · Last modified: 2011/01/01 09:29 by darkfader