Appeal No. 2004-0500
Application No. 09/488,783
consecutive addresses at opposite ends of a range of addresses.
Registers which must be frequently read and written are arranged
into a third group with assigned consecutive addresses between the
addresses of the first and second groups. According to Appellant
(specification, page 2), the register arrangement permits the host
processor to access each of the register groups in a single burst
transaction.
Claim 1 is illustrative of the invention and reads as follows:
1. A method of providing access to registers in a data processing
system having registers directly accessible by a host processor,
the method comprising the steps of:
combining into a first group, registers that must frequently
be read by the host processor,
assigning to the registers in the first group, consecutive
addresses corresponding to a first end of an address range,
combining into a second group, registers that must frequently
be written by the host processor,
assigning to the registers in the second group, consecutive
addresses corresponding to a second end of the address range
opposite with respect to the first end,
accessing the registers in the group in a single burst read
transfer, and
accessing the registers in the second group in a single burst
write transfer.
2
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