cExpress-AL
System Resources
43
6. System
Resources
6.1.
System Memory Map
Address Range (hex)
Description
FF00_0000 –
FFFF_FFFF
IFAW (BIOS)
FED0_0000 –
FEDF_33FF
HPET
FEC0_0000 –
FECF_FFFF
IOAPIC
0K –1MB
DOS DRAM
6.2. I/O
Map
I/O Address
IOSF Primary
Target
IOSF SB Target
000h–01Fh P2SB
Terminate
020h–021h P2SB
ITSS
(interrupt)
024h–025h P2SB
ITSS
(interrupt)
028h–029h P2SB
ITSS
(interrupt)
02Ch–02Dh P2SB
ITSS
(interrupt)
02Eh–02Fh P2SB
LPC/eSPI
030h–031h P2SB
ITSS
(interrupt)
034h–035h P2SB
ITSS
(interrupt)
038h–039h P2SB
ITSS
(interrupt)
03Ch–03Dh P2SB
ITSS
(interrupt)
040h
P2SB
ITSS (Timer 0 Register)
041h P2SB Terminate
042h
P2SB
ITSS (Timer 2 Register)
043h
P2SB
ITSS (Timer Control Word Register)
04Eh–04Fh LPC/eSPI
LPC/eSPI
050h
P2SB
ITSS (alias of 040h)
051h P2SB Terminate
052h
P2SB
ITSS (alias of 042h)
053h
P2SB
ITSS (alias of 043h)
060h P2SB LPC/eSPI
061h
P2SB
ITSS (CPU I/F)
062h P2SB LPC/eSPI
Summary of Contents for cExpress-AL
Page 8: ...2 Introduction This page intentionally left blank ...
Page 36: ...30 Pinouts and Signal Descriptions This page intentionally left blank ...
Page 44: ...38 Module Interfaces This page intentionally left blank ...
Page 48: ...42 Smart Embedded Management Agent SEMA This page intentionally left blank ...
Page 88: ...82 BIOS Setup This page intentionally left blank ...
Page 98: ...92 BIOS Checkpoints Beep Codes This page intentionally left blank ...