User`s guide

A.6 Hardware-Specific and Miscellaneous Register Space
Table A–15 (Cont.) PCI Address Translation Registers
Register Type Address Description
TB7_PAGE3 RW 87.6000.17C0 Translation buffer 7 page3
A.7 21164 Alpha Microprocessor Cbox IPR Space
The 21164 microprocessor cache control and bus interface unit (Cbox) IPR
space occupies physical addresses FF.FFF0.0000 through FF.FFFF.FFFF.
Table A–16 lists three key 21164 registers that configure the internal L2
secondary cache (Scache) and external L3 backup cache (Bcache). For
additional information, refer to the Alpha 21164 Microprocessor Hardware
Reference Manual.
Table A–16 21164 Alpha Microprocessor Cache Configuration Registers
Register Type Address Description
SC_CTL RW FF.FFF0.00A8 Scache control register
BC_CONTROL W FF.FFF0.0128 Bcache, system interface, and Bcache
test control register
BC_CONFIG W FF.FFF0.01C8 Bcache configuration register (size and
timing)
A–22 I/O Space Address Maps