Renesas SH7781 User Manual

Page 582

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13. PCI Controller (PCIC)

Rev.1.00 Jan. 10, 2008 Page 552 of 1658
REJ09B0261-0100

• Cache snoop functions are supported when the PCIC is a target (cache coherency can be

supported by sacrificing performance).

• Supports four external interrupt inputs (INTA, INTB, INTC, and INTD) in host mode
• Supports one external interrupt output (INTA) in normal mode
• Both big endian and little endian are supported in SH7785 (the PCI bus operates in little

endian mode).

Note: The following PCI functions are not supported.

• Supports cache (without the SBO and SDONE pins)
• Address wraparound mechanism
• PCI JTAG (this LSI supports JTAG)
• Dual address cycles
• Interrupt acknowledge cycles
• Start of fast back-to-back transfer (it is supported when the PCIC operates as a target device)
• Extended ROM for initialization, and boot of system

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