CX82100 Home Network Processor Data Sheet
14
Register Map Summary
Most of the register set resides on the APB. These registers are accessible by the
microcontroller directly (memory-mapped). They are also accessible by the host slave-
mode interface indirectly (host pointer).
14.1
Register Type Definition
The register types are defined in Table 14-1.
All registers are not pre-fetchable, which would imply side effects from reads. This
means that read or write accesses, sequential or not, may drive state-dependent state
control.
Table 14-1. Register Type Definition
Register Type
RO
WO
RW
RW*
RR
Description
Read-only
Write-only
Read / Write
Read / Write, but data may not be same as written at a later time.
Same as RW, but writing a 1 resets corresponding bit location, writing 0 has
no effect.
RWp
Wd
Read-only, Write-only shared port, data written cannot be read. Only
accessible by DMAC
Write-only, operates on other data entering register.
101306C
Conexant Proprietary and Confidential Information
14-1
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