Rainbow-electronics AT77SM0101BCB02VKE Manual de usuario descargar pdf (Pagina 7)

AT77SM0101BCB02VKE

5391A–BIOM–09/04

Storage Capacity

Figure 5. RAM Memory Mapping

Figure 6. DataFlash Memory Mapping

Biometric Performances The device’s biometric performances are characterized by the following:

• An image size of 500 × 400

• 256 levels of grey

• A finger swiping speed from 2 to 15 cm/s

• An FRR under 3% at an FAR 10

-4

rate using an IKENDI

algorithm

• An authentication time of under 10 ms

• A biometric template size of 384 bytes

• An authentication algorithm size of 420 kbytes

• An identification time of under 1 second for 50 templates

Software

Operating System

Driver Modules

The biometric module comes preloaded with the Linux operating system (kernel 2.4.19

rmk 7). The kernel includes:

• Ramdisk support

• A serial port driver supporting DBGU and up to four UARTs

• An SPI driver

• Ethernet layers 10/100 Mbits (compatible with MII protocol)

• Watchdog support

Further information can be retrieved at http://www.arm.linux.org.uk.

Used by Ramdisk

Kernel

Code

Used by Kernel

Free

6 MB

1.5 MB

4 MB 4.5 MB

16 MB RAM

Compressed

Kernel

Compressed Ramdisk

AT77SM0101BCB02VKE Compressed Ramdisk < 2 MB

700 kB

3 MB

300 kB

4 MB DataFlash

16 kB

Templates

Database

Storage

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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Rainbow-electronics AT77SM0101BCB02VKE Manual de usuario Pagina 7

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