IT8510G View Datasheet(PDF) - ITE Tech. INC.
Part Name
Description
Manufacturer
IT8510G Datasheet PDF : 284 Pages
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IT8510E
3.2 Host/EC Mapped Memory Space
(byte)
FFFF_FFFFh
FFFF_0000h
FFFE_FFFFh
FFFE_0000h
FFFD_FFFFh
Variable, not necessary
on 32k boundary
1_0000_0000h - Flash_Size
FFFF_FFFFh - Flash_Size
SHMBA+User_Defined_Size-1
SHMBA
000F_FFFFh
000F_0000h
000E_FFFFh
000E_0000h
000D_FFFFh
0000_0000h
Host Memory Space
4G Top
RANGE 1
RANGE 2
RANGE 3
RANGE 4
Out of Range
RANGE 1
RANGE 2
RANGE 3
RANGE 4
(byte)
Flash_Size - 1
64k
Flash_Size - 01_0000h
Flash_Size - 01_0001h
64k
Flash_Size - 02_0000h
Flash_Size - 02_0001h
Flash_Size
EC Code:
Max 160k
Variable, not necessary
on 32k boundary
00_0000h
Expansion Flash Space
Flash Space Top
RANGE 1
RANGE 2
RANGE 3
RANGE 4
EC
Code Memory Space
The range 4 shows space used by EC code and five banks are
all used.
The interface line will be lower if EC code size is smaller than 160K.
(byte)
Bank 3 (32k)
Bank 2 (32k)
Bank 1 (32k)
Bank 0 (32k)
Common Bank (32k)
FFFFh
8000h
7FFFh
0000h
Bank 0
Bank 1 Bank 2
Common Bank
Bank 3
32k
32k
User_Defined_Size
( Max Flash_Size )
These five banks are arragned in order and totally 160K mapped.
Each bank is always mapped but it is only valid if it is used by EC code.
If EC code size <= 64K, Bank 0 is valid to be selected.
If EC code size <= 96K, Bank 0-1 are valid to be selected.
If EC code size <= 128K, Bank 0-2 are valid to be selected.
If EC code size <= 160K, Bank 0-3 are valid to be selected.
If EC code size is not mutiple of 32K, the remainder can be
used by host memory.
Bank 0, 1, 2 and 3 occupy the same code memory space.
Only one of these four banks can be selected at once time.
It is selected by ECBB or P1 register.
If User_Defined_Size < Flash_Size,
only top of the flash space is mapped,
and the bottom is truncated.
Out of Range
RANGE 1
64k
RANGE 2
64k
Out of Range
Figure 3-1. Host/Flash and EC/Flash Mapping (General)
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IT8510E/TE/G V0.7.2
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