SH7751 Datasheet, PDF (962/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

22. PCI Controller (PCIC)
Bits 31 to 24—Base Class Code (CLASS23 to 16): These bits indicate the base class code. For
details of setting values, refer to table 22.5.
Table 22.5 List of CLASS23 to 16 Base Class Codes (CLASS23 to 16)
CLASS23 to 16
Base Class
H'00
H'01
H'02
H'03
H'04
H'05
H'06
H'07
H'08
H'09
H'0A
H'0B
H'0C
H'0D to H'FE
H'FF
Meaning
Device designed prior to class code being defined
High-capacity storage controller
Network controller
Display controller
Multimedia device
Memory controller
Bridge device
Simple communication device
Basic peripheral device
Input device
Docking station
Processor
Serial bus controller
Reserved
Device not categorized in defined class
Bits 23 to 16—Sub Class Codes (CLASS15 to 8): Shows the subclass code. For details, please
see appendix D, Pin Functions of the PCI Local Bus Specifications, Revision 2.1.
Bits 15 to 8—Register Level Programming Interface (CLASS7 to 0): Shows the register level
programming interface. For details, please see appendix D, Pin Functions of the PCI Local Bus
Specifications, Revision 2.1.
Bits 7 to 0—Revision ID (REVID7 to 0): Shows the PCIC revision. The initial value differs
according to the logic version of the chip.
Rev.4.00 Oct. 10, 2008 Page 864 of 1122
REJ09B0370-0400