Sundance Technology
ST201
PRELIMINARY draft 2
EXPROMADDR |
|
Class | I/O Registers, External Interface Control |
Base Address | IoBaseAddress register value |
Address Offset | 0x40 |
Access Mode | Read/Write |
Width | 32 bits |
ExpRomAddr holds the address to be used for direct I/O accesses of the Expansion ROM through the ExpRomData port. To access a byte in the Expansion ROM, write the address of the byte to be accessed into ExpRomAddr. Then issue either a read or a write to ExpRomData. For reads, the ROM value will be returned by the read instruction. For writes, the new value will be programmed into the ROM upon comple- tion of the write instruction.
BIT
15..0
31..16
BIT NAME
ExpRomAddr
Reserved
BIT DESCRIPTION
Address used for accessing expansion ROM.
Reserved for future use. Should be set to 0.
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