PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 817
PNX1500E
Manufacturer Part Number
PNX1500E
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1500E.pdf
(828 pages)
Specifications of PNX1500E
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1. Introduction
2. Functional Description
The PNX15xx/952x Series Device Control and Status (DCS) Network architecture is
designed to support the following:
The DCS bus is intended for MMIO traffic to configure the various modules in the
system. All modules can be accessed by the Boot module, and external PCI master
or the TM3260 itself. Access between the DCS bus and the memory is provided by
the DCS-Gate. This path is to be used by the boot module only!
page 3-138
DCS bus.
A generic “Device Transaction Level” (DTL) point-to-point initiator-target
communication protocol is used on the boundary between a module and the DCS
bus. MMIO communication through the DTL protocol always consists of a single 32-
bit data element.
Each module on the DCS bus has a unique ID. The bus controller provides
programmable timeout generation with the following features:
The DCS network controllers generate selects for all the DCS targets according to
the address on the DCS network aperture map. See
Resources,
•
•
•
•
•
Chapter 30: DCS Network
PNX15xx/952x Series Data Book – Volume 1 of 1
Rev. 4.0 — 03 December 2007
Separates MMIO traffic from DMA traffic:
–
Provides low latency access to modules:
–
Supports timeout generation.
Captures error and timeout information:
–
–
–
–
Allows interrupt generation for any non-masked timeouts and errors.
The TM3260 core has a high-performance, low-latency path to memory.
TM3260 ICache and DCache traffic is separated.
The TM3260 core has a low latency access to different modules of PNX15xx/
952x Series system.
Initiator ID of the currently granted DCS Initiator
32-bit address of the currently granted DCS transaction
Encoded Target number for the currently selected DCS device
Additional information including read or write command information
in
Section 11. on page 3-139
Chapter 3 System On Chip Resources
for addresses of DCS target apertures.
Chapter 3 System On Chip
pictures PNX15xx/952x Series
Product data sheet
Figure 3 on
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