參數(shù)資料
型號: SDCFBI-30-101
廠商: SANDISK CORP
元件分類: 存儲控制器/管理單元
英文描述: FLASH MEMORY DRIVE CONTROLLER, XMA50
封裝: PC CARD-50
文件頁數(shù): 69/124頁
文件大?。?/td> 769K
代理商: SDCFBI-30-101
CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual 1999 SANDISK CORPORATION
49
5.1
I/O Primary and Secondary
Address Configurations
Table 5-2 Primary and Secondary I/O Decoding
-REG
A9-A4
A 3
A 2
A 1
A 0
-IORD=0
-IOWR=0
Note
0
1F(17)
0
Even RD Data
Even WR Data
1, 2
0
1F(17)
0
1
Error Register
Features
1
0
1F(17)
0
1
0
Sector Count
0
1F(17)
0
1
Sector No.
0
1F(17)
0
1
0
Cylinder Low
0
1F(17)
0
1
0
1
Cylinder High
0
1F(17)
0
1
0
Select Card/Head
0
1F(17)
0
1
Status
Command
0
3F(37)
0
1
0
Alt Status
Device Control
0
3F(37)
0
1
Drive Address
Reserved
Notes:
1. Register 0 is accessed with -CE1 low and -CE2 low (and A0 = Don't Care) as a word register on the
combined Odd Data Bus and Even Data Bus (D15-D0). This register may also be accessed by a pair of byte
accesses to the offset 0 with -CE1 low and -CE2 high. Note that the address space of this word register
overlaps the address space of the Error and Feature byte-wide registers which lie at offset 1. When
accessed twice as byte register with -CE1 low, the first byte to be accessed is the even byte of the word and
the second byte accessed is the odd byte of the equivalent word access.
2. A byte access to register 0 with -CE1 high and -CE2 low accesses the error (read) or feature (write)
register.
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