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參數資料
| 型號： | W90100F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | Embedded Micro-Controller(32位嵌入式的微控制器) |
| 中文描述： | 嵌入式微控制器（32位嵌入式的微控制器） |
| 文件頁數： | 30/61頁 |
| 文件大小： | 380K |
| 代理商： | W90100F |
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W90100F
Embedded Micro-Controller
Revision 1.1
The above information is the exclusive intellectual property of Winbond Electronics Corp. and shall not be disclosed, distributed or reproduced without permission from Winbond
-30-
Publication Release Date: 10/07/97
AIR[0]
AIR[1]
AIR[2]
AIR[3]
AIR[4]
AIR[5]
AIR[6]
AIR[7]
Internal configuration register
PSW register
TMR register
Memory configuration register 1
Memory configuration register 2
reserved
reserved
PCO register (program counter)
TABLE 8.6 W90100 CPU CORE AIRS
Important:
Enabling or disabling the data cache will not change the contents of the data cache.
Disabling the internal D-cache with MTAIR[0] will cause dirty data to be left in the D-Cache and not
automatically written into memory. When a program references the dirty data location, stale data in memory will
be returned. To prevent this, a cache invalidation routine should be performed before the internal D-cache is
disabled. The invalidation routine must flush all cache entries one by one. This will invalidate the cache and also
write back any dirty data.
AIR[1] and AIR[2] are reserved registers and should never be written to or read from them. Accessing
these registers will cause unpredictable result.
AIR[3] : Write_through base register & region size register
[0:15] Write_through region base register[0:15]
[16:19] system Non_cacheable region
0000 = all cacheable
0001 = above 1M
0010 = above 2M
0011 = above 4M
0100 = above 8M
0101 = above 16M
0110 = above 32M
0111 = above 64M
1000 = above 128M
1001 = above 256M
[20] address A0000 ~ FFFFF Non_cacheable
0 : Cacheable (default)
1 : Non_cacheable
[21:23] Non_cacheable region 1 size
[24:26] Non_cacheable region 2 size
000 = disable
001 = 64K
010 = 128K (the base address must be 128K boundry)
011 = 256K (the base address must be 258K boundry)
100 = 512K (the base address must be 512K boundry)
101 = 1M (the base address must be 1M boundry)
110 = 2M (the base address must be 2M boundry)
111 = 4M (the base address must be 4M boundry)
[27:29] Write_through region size
000 = disable
001 = 64K
010 = 128K (the base address must be 128K boundry)
011 = 256K (the base address must be 258K boundry)
100 = 512K (the base address must be 512K boundry)
101 = 1M (the base address must be 1M boundry)
110 = 2M (the base address must be 2M boundry)
111 = 4M (the base address must be 4M boundry)
AIR[4] : Non_cacheable Base register
[0:15]
Non_cacheable region 1 base address[0:15]
[16:31] Non_cacheable region 2 base address[0:15]
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