ARM9 芯 片 选 型

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INTEL SUMSUNG CIRRUS LOGIC SHARP ATMEL SHARP MOT TI NEO AMD
PXA-270 PXA-255 S3C2410 S3C2440 S3C24A0 EP9315 EJP9312 EP9307 LH79520 AT91RM9200 LH7A404 MC9328M×1 OMAP5910 Magic5 AU1100
Core Xscale Xscale 920T 920T 920T 920T 920T 920T 720T 920T 922T 920T ARM925&
CS55× 922T MIPS32
Mhz 520 400 200 400 200 200 200 200 77.4 180 200 200 150 220 400
Math Co-processor Yes No No No No Yes Yes Yes No Yes No No 200Mhz No No
USB 1.1  1.1  1.1  1.1  1.1  2.0  2.0  2.0  No 2.0  1.1  1.1  1.1  1.1  1.1
USB Ports 1×H/1×C 1×C 1×H/1×C 2×H/1×C 2×H/1×C 3×H 3×H 3×H No 1×C/2×H 1×H/1×C 1×C 1×H/1×C 2×H 1×H/1×C
Ethernet No No No No No Yes Yes Yes No Yes No No No No 2×10/100
LCD Interface Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No
Graphics Accel No No No No No Yes Yes Yes No No No No No No No
Keypad Yes No No No Yes Yes Yes Yes No No No No No No No
Touch Screen No No Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No No
Audio Yes Yes Yes Yes Yes Yes Yes Yes No No Yes No No Yes Yes
GPIO 121 17 117 130 32 47 47 47 64 No 64 Yes Yes 1 48
SD/MMC Yes Yes Yes Yes Yes No No No No Yes Yes Yes Yes No No
IDE Interface No No No No No Yes Yes No No No No No No No No
UART 3 3 3 3 2 3 3 3 3 2 3 2 3 4 2
D MA Channels 32 16 4 4 4 12 12 12 4 20 12 11 16 12
A/D Convertor No No Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No No
Security ID No No No No No Yes Yes Yes No No No No No No No
PCMCIA Interface Yes Yes No No No Yes No No No No No No No No No