PNX17XX Datasheet, PDF (698/832 Pages) NXP Semiconductors – Connected Media Processor

Philips Semiconductors
Volume 1 of 1
PNX17xx Series
Chapter 23: LAN100 — Ethernet Media Access Controller
Table 2: LAN100 Registers …Continued
Bit Symbol
Acces
s
Value
Description
Offset 0x07 2FF4
Power-down Register (PowerDown)
The PowerDown register is used to block all MMIO access except access to the PowerDown register. Setting the bit will
return an error on all register access except for access to the PowerDown register.
In case the LAN100 is in a power-down state because, for example, no PHY is connected, then software should set the
PowerDown bit in the PowerDown register in order to prevent deadlock (for example, due to a speculative read operation of
the CPU).
31 PowerDown
R/W
If set, all register access will return a read/write error except
accesses to the PowerDown register.
30:0 -
-
Unused
Offset 0x07 2FFC
Module ID Register (ModuleID)
The ModuleID register is used to store standard Philips module ID information.
31:16 ModuleID
RO
0x3902 Unique 16-bit module identification.
15:12 MajRev
RO
0x1
Major design revision number.
11:8 MinRev
RO
0x1
Minor design revision number.
7:0 ApertureSize
RO
0
Represents the aperture of the software registers in the MMIO
register space. Aperture size is 4 Kb, corresponding to a value 0 in
this field.
3.3 Pattern Matching Join Register
The Pattern Matching Join register (PatternMatchJoin) defines the way the outputs of
the four pattern-matching sections are joined together into a single pattern-matching
result. Joining is done by a pyramid architecture in three stages. The first stage
PNX17XX_SER_1
Preliminary data sheet
Rev. 1 — 17 March 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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