參數(shù)資料
型號(hào): V30MZ
英文描述: V30MZ(TM) Hardware (Preliminary) | User's Manual[01/2002]
中文描述: V30MZ(TM)硬件(初步)|用戶手冊(cè)[01/2002]
文件頁數(shù): 32/89頁
文件大?。?/td> 418K
代理商: V30MZ
CHAPTER 3 CPU FUNCTIONS
32
The word data configuration and double word data configuration are as follows.
Figure 3-3. Configuration of Word Data and Double Word Data
(a) Word data configuration
(b) Double word data configuration
Higher byte
Lower byte
Higher address
Lower address
Higher byte
Lower byte
Higher address
Lower address
Higher byte
Lower byte
Higher word
Lower word
3.2.2 I/O space
The V30MZ can access an I/O space of up to 64 K bytes (32 K words) in an area independent of the memory
space.
The I/O space is addressed by I/O address information output from the lower 16 bits of the address bus. Figure 3-
4 shows the I/O map. The 256 bytes of FF00H to FFFFH are reserved for future use and are not available for users.
For the access method, refer to
Section
4.2 Interface between V30MZ and I/O
.
Figure 3-4. I/O Map
Reserved
FFFFH
FF00H
FEFFH
0000H
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