CDA CD 60 Spezifikationen PDF herunterladen (Seite 80)

PCI CD and PCI CDa

Document Number: 008-00965-06 EDT Public December 2004

Template: edt.dot

Page 80

D24 A value of 1 causes the data in the flash ROM data register to be written to

the address specified by bits 0 through 23. A value of 0 reads the data.

D23-0 Address of location in flash ROM that the next read or write will access.

Flash ROM Data Register

Size 32-bit

I/O read-write

Address 0x84

Access EDT_FLASHROM_DATA

Comment Use this register and the flash ROM address register (above) to update the

program in the field-programmable gate array that implements the PCI

interface.

Bit Description

D31–9 Not used

D8 A read-only bit indicating the position of the jumper that enables access to

the protected area of the ROM that contains the executable program. A

value of 1 indicates that the board can load a new program.

D7-0 The new program to load into flash ROM with a write operation (specified by

setting bit A24 in the flash ROM address register), or the data that was read

(specified by clearing bit A24 in the flash ROM address register).

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CDA CD 60 Spezifikationen Seite 80