参数资料
型号: SPLC783A
厂商: Electronic Theatre Controls, Inc.
英文描述: 16COM/80SEG Controller/Driver
中文描述: 16COM/80SEG控制器/驱动器
文件页数: 19/38页
文件大小: 2192K
代理商: SPLC783A
SPLC783A
5.14. Interfacing to MPU
Sunplus Technology Co., Ltd.
Proprietary & Confidential
19
MAR. 10, 2005
Version: 1.4
There are two types of data operations: 4-bit and 8-bit operations.
Using 4-bit MPU, the interfacing 4-bit data is transferred by
4-busline (DB4 to DB7). Thus, DB0 to DB3 bus lines are not
used. Using 4-bit MPU to interface 8-bit data requires two times
transferring. First, the higher 4-bit data is transferred by
4-busline (for 8-bit operation, DB7 to DB4). Secondly, the lower
4-bit data is transferred by 4-busline (for 8-bit operation, DB3 to
DB0). For 8-bit MPU, the 8-bit data is transferred by 8-buslines
(DB0 to DB7).
Example of 4-bit Data Transfer Timing Sequence
SunpusConidenia
Fo PARTMNERUseOny
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