參數(shù)資料
型號: KS9245
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: Automated CD-ROM Controller(光盤驅(qū)動器控制器器)
中文描述: 自動CD - ROM控制器(光盤驅(qū)動器控制器器)
文件頁數(shù): 98/102頁
文件大小: 419K
代理商: KS9245
SAMSUNG
Version: TM 2.4
KS9245 ATAPI Automated CD-ROM Controller
Preliminary Technical Manual
_____________________________________________________________
Do Not Copy or Release
12-5
KS9245
Motorola Microprocessor
Motorola Indirect Access Interface Diagram
RDB
WRB
R/WB
DSB
AD[7:0]
AD[7:0]
74HC373
ALE
RSB
Address Port:
Data Port:
A0 = 0
A0 = 1
A0
G
OC
D0
Q0
CSB
AD0
22K
+5V
MSEL/BADD8
ISEL/BADD7
In this scheme, two access are required if the previous access is to a different location. The first
access writes the address port to select a register in the KS9245 while the second access
reads/writes the selected KS9245 register. For example, to read from register 10h of the KS9245,
the first access should write 10h to any even address (A0=0) to program the address port with 10h.
The next access must then be a read to any odd address (A0=1) to obtain the data from register
location 10h.
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