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UPD703103A Datasheet(PDF) 72 Page - NEC

No. de Pieza. UPD703103A
Descripción  32-Bit Single-Chip Microcontrollers
Descarga  99 Pages
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Fabricante  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD703103A Datasheet(HTML) 72 Page - NEC

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CHAPTER 5 APPLICATION EXAMPLES
Application Note U17121EJ1V1AN
72
5.5 Sample Program Examples
This sample program is assumed to be used in an environment with the PCI-IDE board connected to the
V850E/ME2 evaluation board as the PCI device.
The PCI-IDE board is connected to the IDE HDD, and the sample program accesses the IDE HDD.
5.5.1 Development tools
(1) MULTI
TM 1.8.9
Integrated development environment made by Green Hills Software
TM, Inc.
(2) PCI-IDE board
IDE card of PCI interface connected to evaluation board.
Used by connecting IDE HDD in this application.
5.5.2 Program configuration
The sample program configuration is shown below.
(1) PCI host bridge macro initialization sample program list
First the PCI host bridge macro must be initialized for the CPU to access the PCI area.
The correspondence between the PCI memory space and CPU memory space, the interrupts from PCI, and
access control from the CPU to the PCI memory space are set by the PCI host bridge macro registers.
(2) PCI configuration space access sample program list
When initialization of the PCI host bridge macro ends, initialization of each PCI device connected to the PCI
bus is performed. Initialization is performed mainly by setting the configuration space registers existing in
each PCI device. The configuration space registers can be accessed only by executing a configuration cycle
using the PCI_CONFIG_ADD and PCI_CONFIG_DATA registers described in the register descriptions.
(3) IDE HDD access sample program list
When initialization of the PCI host bridge macro and PCI devices ends, the PCI device can actually be
operated. The PCI device is operated by setting the registers assigned to the configuration space and PCI I/O
area.
The IDE bus setting is performed and the IDE HDD is actually accessed by operating the PCI-IDE board
registers in this sample code.


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