PNX1701EH,557 NXP Semiconductors, PNX1701EH,557 Datasheet - Page 110
PNX1701EH,557
Manufacturer Part Number
PNX1701EH,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1701EH557.pdf
(832 pages)
Specifications of PNX1701EH,557
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / Rohs Status
Not Compliant
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1. Introduction
2. System Memory Map
Figure 1:
The Two Operating Modes of PNX17xx Series
a) PNX17xx Series in host mode
Flash/IDE
PNX17xx
PCI Bus
This chapter presents information on the PNX17xx Series System On-Chip (SOC)
and its MMIO registers. Further details on each module composing PNX17xx Series
are available on dedicated chapters though this databook. Reading this chapter is
recommended before jumping to the individual module documentation.
PNX17xx Series is designed to work in two different environments: standalone and
host mode
the software application that runs on the TM5250 CPU) from an EEPROM or a Flash
memory device. In this mode the PNX17xx Series acts as the master. In host mode
PNX17xx Series program is downloaded into the PNX17xx Series main memory
before the TM5250 CPU is released from reset. In this mode the PNX17xx Series
acts as a slave. This mode is typically used for a PCI plug-in card or a standalone
system where a control processor is the master. In both modes the PCI bus is the
main bus used to attach other components of the board system. In order to
successfully get all these components working together, it is important to understand
PNX17xx Series system memory map and its bus structure.
Following the PCI memory addressing principles, PNX17xx Series system provides
several apertures in its 32-bit address space to communicate to the other devices
through the PCI bus. At system level, there are three different views of these
apertures. The view from the TM5250 CPU, the view from the internal bus, called
DCS, and the view from the PCI module. The DCS view is introduced to present the
overall view of the system memory map.
Chapter 3: System On Chip
Resources
PNX17xx Series Data Book – Volume 1 of 1
Rev. 1 — 17 March 2006
Controller
Interrupt
PCI Agent
PCI Bridge
PCI Bus
Arbiter
(Figure
Host CPU
(e.g., x86)
1). In standalone mode PNX17xx Series retrieves its program (i.e.
PCI Agent
b) PNX17xx Series in standalone mode as the host (i.e.
PNX17xx
IDE
PCI Bus
FLASH
PCI Agent
Preliminary data sheet
PCI Agent
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