TMS320DM6437_08 Datasheet, PDF (281/305 Pages) Texas Instruments – Digital Media Processor

www.ti.com
TMS320DM6437
Digital Media Processor
SPRS345D – NOVEMBER 2006 – REVISED JUNE 2008
6.20 Peripheral Component Interconnect (PCI)
The DM6437 DMP 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 TMS320DM643x DMP
Peripheral Component Interconnect (PCI) User's Guide (literature number SPRU985).
6.20.1 PCI Device-Specific Information
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 DM6437 device, the pins of the PCI peripheral are multiplexed with the pins of the VPSS, EMIFA,
GPIO, HPI, VLYNQ, and EMAC peripherals. For more detailed information on how to select PCI, see
Section 3, Device Configurations.
The DM6437 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 6-97 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 is also shown in Table 6-97. 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 TMS320DM643x DMP
Peripheral Component Interconnect (PCI) User's Guide (literature number SPRU985) and the Using the
TMS320DM643x Bootloader Application Report (literature number SPRAAG0).
The PCI peripheral is a master peripheral within the DM6437 DMP.
Table 6-97. 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
Submit Documentation Feedback
Peripheral Information and Electrical Specifications 281