cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 307

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
DIVIL Register Descriptions
5.6.1.6
MSR Address
Type
Reset Value
This register is reserved for internal use by National and should not be written to.
5.6.2
Refer to Section 4.6 "Diverse Integration Logic" on page 96 for an explanation and block diagram of the address compari-
son mechanism of the base address and the address lines.
Note that the I/O space 04FFh-0000h is off limits to I/O LBARs.
5.6.2.1
MSR Address
Type
Reset Value
See Section 4.6.1 "LBARs and Comparators" on page 97 for operational details.
The IRQ Mapper takes 32 bytes of I/O space. Use of this LBAR is optional. The IRQ Mapper is always available via MSR
space.
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
63:49
47:44
43:33
31:20
Bit
1:0
Bit
48
32
16
DIVIL Specific MSRs
GeodeLink Device Diagnostic MSR (DIVIL_GLD_MSR_DIAG)
Local BAR - IRQ Mapper (DIVIL_LBAR_IRQ)
Name
PMODE0
Name
RSVD
RSVD
IO_MASK
RSVD
LBAR_EN
RSVD
RSVD
51400005h
R/W
00000000_00000000h
51400008h
R/W
00000000_00000000h
RSVD
RSVD
DIVIL_GLD_MSR_PM Bit Descriptions (Continued)
Description
Power Mode for GeodeLink Adapter GeodeLink Interface. See bits [31:30] for
decode.
Description
Reserved. Reads return 0; writes have no effect.
Reserved. Always write 0.
I/O Address Mask Value. See discussion in Section 4.6.1 "LBARs and Comparators"
on page 97.
Reserved. Reads return 0; writes have no effect.
LBAR Enable.
0: Disable address detection by this LBAR.
1: Enable address detection by this LBAR.
Reserved. Reads return 0; writes have no effect.
Reserved. Always write 0.
DIVIL_MSR_LBAR_IRQ Bit Descriptions
(Continued)
DIVIL_LBAR_IRQ Register Map
307
IO_MASK
BASE_ADDR
9
8
7
RSVD
6
5
4
3
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RSVD
2
1
0