About NT7553E

losas

About NT7553E [复制链接]

Hello all:

 

Note:
Transfer synchronization function for an 8-bit bus interface
The NT7553E supports the transfer synchronization function, which resets the upper/lower counter to count upper/lower 8-bit
data transfer in the 8-bit bus interface. Noise causing transfer mismatch between the eight upper and lower bits can be
corrected by a reset triggered by consecutively writing a 00H instruction four times. The next transfer starts from the upper
eight bits. Executing synchronization function periodically can recover any runaway in the display system.

请问这段的意思与该注意的地方，它是在上传附件 Page 15。

 

Page 14 有 6800 Processor and 8080 Processor in Table 2。

 

有大侠能详细说明 Page 15 的 Figure 2，使用 8080 series 8-bit parallel bus 到底何时接收传送 upper code and lower code 才是正确的程序？

 

可能的话，麻烦附上 C code。

 

Thank you very much.

 

NT7553E_V3.0.rar (1.66 MB, 下载次数: 10)

2010-6-10 17:54 上传

点击文件名下载附件

qushaobo

在A0,R/W(RDB)为0时,发送4个00h,清高低位计数器.然后发送的高8位.