Atmark Techno Armadillo-420, Руководство по оборудованию

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3. Overview
3.1. Board Overview
The main specifications of the Armadillo-400 Series are as follows.
3.1 Armadillo-400 Series Board Specifications
Armadillo-420 Armadillo-440
Processor Freescale i.MX257 (MCIMX257)
Processor
Functions
ARM926EJ-S Core
Instruction / Data Cache: 16KByte / 16KByte
Internal SRAM: 128KByte
Thumb code (16bit instruction set) support
System Clock
CPU Core Clock: 400MHz
BUS Clock: 133MHz
Oscillator Clock: 32.768kHz, 24MHz
SDRAM
LPDDR SDRAM: 64MByte (16bit width)
Micron MT46H64M16LFCK-6 IT
LPDDR SDRAM: 128MByte (16bit width)
Micron MT46H32M16LFBF-6 IT
Flash Memory
NOR Flash Memory: 16MByte (16bit
width)
Numonyx PC28F128P30BF
Maximum Write Cycles: 100,000
NOR Flash Memory: 32MByte (16bit width)
Numonyx PC28F256P30BF
Maximum Write Cycles: 100,000
Ethernet 10BASE-T/100BASE-TX with AUTO-MDIX
Serial (UART)
3 channels max
[1]
UART2:
• RS232C level
• flow control pins (CTS, RTS, DTR,
DSR, DCD, RI)
• Max baud rate: 230.4kbps
UART3
[2]
/UART5
[2]
:
• +3.3V CMOS levels
• flow control pins (CTS, RTS)
• Max baud rate: 4Mbps
4 channels max
[1]
UART2:
• RS232C level
• flow control pins (CTS, RTS, DTR, DSR,
DCD, RI)
• Max baud rate: 230.4kbps
UART3
[2]
/UART4
[3]
/UART5
[2]
:
• +3.3V CMOS levels
• flow control pins (CTS, RTS)
• Max baud rate: 4Mbps
Armadillo-400 Series Hardware Manual Overview
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