VIPER Technical Manual

Detailed hardware description

 

 

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

AEN

BALE

SBHE

A<0:15>

IOCS16

IOCHRDY

IOR/IOW

DATA (read)

DATA (write)

VALID

VALID

VALID

VALID

VALID

VALID

PC/104 8-bit memory write access cycle

AEN

BALE

SBHE

A<0:23>

MEMCS16

IOCHRDY

(S)MEMW

DATA (write)

VALID

VALID

VALID

VALID

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

© 2007 Eurotech Ltd Issue E

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