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Eurotech Appliances VIPER / VIPER-LITE PXA255 User Manual

Page 69

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VIPER Technical Manual

Detailed hardware description

© 2007 Eurotech Ltd Issue E

69

PC/104 16-bit I/O read/write access cycles




















PC/104 8-bit memory write access cycle


















8-bit memory read access cycles are not supported by the PXA255 PCMCIA
controller for common memory space.

AEN

BALE

SBHE

A<0:15>

IOCS16

IOCHRDY

IOR/IOW

DATA (read)

DATA (write)

VALID

VALID

VALID

VALID

VALID

VALID

AEN

BALE

SBHE

A<0:23>

MEMCS16

IOCHRDY

(S)MEMW

DATA (write)

VALID

VALID

VALID

VALID