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參數(shù)資料
| 型號： | MAH28155LXXXX |
| 廠商： | DYNEX SEMICONDUCTOR LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 24 I/O, PIA-GENERAL PURPOSE, CQCC44 |
| 封裝： | LCC-44 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大?。?/td> | 254K |
| 代理商： | MAH28155LXXXX |
MA28155
6/20
OPERATING MODE 1
(Strobed Input/Output)
This functional configuration provides a means for
transferring l/O data to or from a specified port in conjunction
with strobes or handshaking signals. In mode 1, port A and
port B use the lines on port C to generate or accept these
handshaking signals
s Two Groups (Group A and Group B) .
s Each Group contains one 8-bit data port and one 4-bit
control/data port,
s The 8-bit data port can be either input or output, Both
inputs and outputs are latched,
s The 4-bit port is used for control and status of the 8-bit data
port.
Figure 7: Strobed Input Timing Diagram
Figure 8: Strobed Output Timing Diagram
DSN
RD/WN
STBN
OBFN
RD/WN
DSN
ACKN
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