TMS320C6424 Datasheet, PDF (222/243 Pages) Texas Instruments – Fixed-Point Digital Signal Processor

TMS320C6424
Fixed-Point Digital Signal Processor
SPRS347A – MARCH 2007 – REVISED APRIL 2007
www.ti.com
6.18 Peripheral Component Interconnect (PCI)
The C6424 DSP supports connections to PCI-compliant devices via the integrated PCI master/slave bus
interface. The PCI port interfaces to DSP internal resources via the data switched central resource. The
data switched central resource is described in more detail in Section 4, System Interconnect.
For more detailed information on the PCI port peripheral module, see the TMS320C642x DSP Peripheral
Component Interconnect (PCI) User's Guide (literature number SPRUEN3).
6.18.1 PCI Device-Specific Information
The PCI peripheral on the C6424 DSP conforms to the PCI Local Bus Specification Revision 2.3. The PCI
peripheral can act both as a PCI bus master and as a target. It supports PCI bus operation of speeds up
to 33 MHz and uses a 32-bit data/address bus.
On the C6424 device, the pins of the PCI peripheral are multiplexed with the pins of the EMIFA, GPIO,
HPI, VLYNQ, and EMAC peripherals. For more detailed information on how to select PCI, see Section 3,
Device Configurations.
The C6424 device provides an initialization mechanism through which the default values for some of the
PCI configuration registers can be read from an I2C EEPROM. Table 6-74 shows the registers which can
be initialized through the PCI auto-initialization. The default value of these registers when PCI
auto-initialization is not used. PCI auto-initialization is enabled by selecting PCI boot with
auto-initialization. For information on how to select PCI boot with auto-initialization, see Section 3.4.1, Boot
Modes. For more information on PCI auto-initialization, see the TMS320C642x DSP Peripheral
Component Interconnect (PCI) User's Guide (literature number SPRUEN3) and the Using the
TMS320C42x Bootloader Application Report (literature number SPRAAK5).
The PCI peripheral is a master peripheral within the C6424 DSP.
Table 6-74. Default Values for PCI Configuration Registers
Vendor ID
Device ID
Class Code
Revision ID
System Vendor ID
Subsystem ID
Max Latency
Min Grant
Interrupt Pin
Interrupt Line
REGISTER
DEFAULT VALUE (HEX)
104C
B001
11 8000
01
0000
0000
00
00
00
00
222 Peripheral Information and Electrical Specifications
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