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NXP Semiconductors
PNX15xx/952x Series
Volume 1 of 1
Chapter 2: Overview
PNX15XX_PNX952X_SER_N_4
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 4.0 — 03 December 2007
2-106
10.3.3
IDE Drive Interface
The PNX15xx/952x Series contains an IDE controller that uses some of the PCI pins
and a few sideband signals. Two external TTL devices are all that is required to
interface to an actual IDE cable/drive. The IDE controller capabilities are:
controls attached disks in PIO mode, for a peak data rate of 16.6 MB/s (PIO4)
supports sustained bandwidth of up to 10 MB/s
sends DMA blocks of disk data to and from system DRAM
all IDE registers are accessible to TM3260 software
10.4 10/100 Ethernet MAC
The PNX15xx/952x Series integrates a 10/100 Ethernet MAC sub-layer of the IEEE
802.3 standard enabling an external PHY to be attached through a Reduced Media
Independent Interface (RMII) or a standard Media Independent Interface (MII). It
implements dual transmit descriptor buffers, support for both real-time and non-real-
time trafc and support for quality of service (QoS) using low-priority and a high-
priority transmit queues. Among other features the 10/100 Ethernet MAC module
includes:
Wake-on-LAN power management support. This allows system wake-up using
receive lters or a magic packet detection lter.
Receive ltering with perfect address matching, a hash table imperfect lter and 4
pattern match lters.
Memory trafc optimization via buffering and prefetching
The MAC address is programmable into an MMIO register. The MAC address could
be located in an externally attached EEPROM.
11. Endian Modes
PNX15xx/952x Series fully supports little- and big-endian software stacks.
PNX15xx/952x Series always starts in a xed endian mode which is determined by
the boot script. There is a system provision for TM3260 software to reset and restart
the TM3260 in the opposite endian mode such that a eld software Flash upgrade
can release a ‘endian mode opposite boot’ software upgrade.
external DRAM
not supported
not supported on PCI/XIO.
external Motorola
style masters
not supported
PNX15xx/952x Series PCI/XIO does NOT support external Motorola style
masters. PNX15xx/952x Series assumes that it is always the master over the
XIO bus.
external 8/16-bit
XIO DMA devices
not supported
not supported. Use one of the streaming DV inputs or outputs instead.
Table 9: PCI/XIO-16 Bus Interface Unit Capabilities
External Device
Device Type
Capabilities