
Product spec and feature
2-31
• Memory :
- RAM : DDR2 Default 128MB + Option 128/256MB
- ROM : 16MB+8MB
- EEPROM : 64kb
• Peripherals :
- USB 2.0
- 10/100 Based N/W (MII Interface Phy Chip Used)
• I/O :
- Digital I/O Port : Basic I/O, PWM : Motor & HVPS Control
- UART : Debug, FAX, OP
- I2C : EEPROM & SDRAM & CRUM Interface
- Analog I/O Port (ADC : Sensor Interface, DAC : LD Power Control)
Chorus 3 Architecture
• CPU Core : ARM9266EJS 360Mhz (I-Cache : 16KB, D-Cache : 16KB)
• SDRAM Controller : 4 bank DDR1 SDRAM and 4 & 8 bank DDR2 SDRAM
(DDR2 2DIMM Used, 166MHz), 120Mhz System Bus
• ROM Controller : 2 Banks ( 1 Bank Used)
• I/O Controller : 4 Channel
• DMA Controller : 3 Channel
• HPVC : 4 Channel Dual / Single Beam
• UART : 4 Channels (Debug, OP, FAX 3 Channel used )
• Interrupt : 4 External, 64 Internal
• TIMER : 6 System Timer
Memory Interface
• ROM :
- Nor Flash : 16MB(Program ROM) + 8MB(Backup Memory)
- Serial Flash : 4MB
- Interface With Chorus 3/SPGPXm ROM Controller
• SDRAM :
- Size : Default 128MB (Option 128/256MB)
• EEPROM :
- Size : 64kb
- Interface With Chorus 3/SPGPXm I2C Controller
• CRUM :
- Size : 256Byte
- Interface With Chorus M I2C Controller via Deve Joint Board
I/O Interface
• High Speed USB 2.0 (High speed 480Mbps / Full speed 12Mbps)
• N/W Embedded
- Chorus3 With MII Interface
- Active LED(Yellow) / Link LED(Green)
• PWM
- High Voltage Control With Duty
- Main Motor Clock
• I2C Interface
- NVRAM (system information + network information)
- CRUM
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