參數(shù)資料
型號: HD4074459
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計算機)
中文描述: 4位HMCS400系列微機(4位單片微計算機)
文件頁數(shù): 81/120頁
文件大?。?/td> 692K
代理商: HD4074459
HD404459 Series
81
Serial Interface
The MCU has a serial interface (figure 67). The serial interface serially transfers or receives 8-bit data, and
includes the following features.
Multiple transmit clock sources
External clock
Internal prescaler output clock
System clock
Output level control in idle states
Five registers, an octal counter, and a multiplexer are also configured for the serial interface as follows.
Serial data register (SRL: $006, SRU: $007)
Serial mode register A (SMRA: $005)
Serial mode register B (SMRB: $028)
Port mode register A (PMRA: $004)
Miscellaneous register (MIS: $00C)
Octal counter (OC)
Selector
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