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參數(shù)資料
| 型號： | ML64168-XXX |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 0.7 MHz, MICROCONTROLLER, UUC80 |
| 封裝： | DIE-80 |
| 文件頁數(shù)： | 35/49頁 |
| 文件大?。?/td> | 317K |
| 代理商： | ML64168-XXX |
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FEDL64168-01
Semiconductor
ML64168
40/49
FUNCTIONAL DESCRIPTION
CPU Peripheral Function
A/D converter ( ADC )
The ML64168 has a built-in two-channel RC oscillation A/D converter. The A/D converter is
composed of a two-cannel oscillation circuit, Counter A ( CNTA0-4, a 4.8-digit decade counter ),
Counter B ( CNTB0-3, a 14-bit binary counter ), and A/D Converter Control Registers 0 and 1
( ADCON0, ADCON1 ).
By counting oscillation frequencies that vary depending on a resistor or capacitor connected to the
RC oscillation circuit, the A/D converter converts resistance values or capacitance values to
corresponding digital values. By using a thermistor or humidity sensor as a resistance, a thermometer
or a hygrometer can be constructed. By applying a separate sensor to each cannel of the 2-channel RC
oscillation circuit, it is also possible to extend measure ranges or measure at two places.
Serial port ( SIOP )
The ML64168 has an 8-bit synchronous serial port. Receive/transmit operation of the serial port is
performed simultaneously and the serial transfer clock can select either internal or external mode.
Direction of transfer data can be big endian or little endian. Each pin of the serial port is assigned as
secondary functions of P3.3 and P4.0 to P4.2. Setting each bit of SIN,SOUT, SPR and SCLK of
P33CON and P40CON to P42CON to “1” makes each pin valid.
LCD driver ( LCD )
The ML64168 has a built-in LCD driver for 34 outputs.
The LCD driver consists of 31
× 4-bit display registers ( DSPR0-30 ), the Display Control Register
( DSPCON ), a 34-output LCD driver circuit, and a bias generation circuit ( BIAS ).
The bias generation circuit for LCD driver ( BIAS ) generates bias voltages for the LCD driver by
rising or dropping the power supply voltage by externally installing capacitors. Alternatively, it
generates bias voltages by rising the constant voltage ( VDD1 = 1.2V ) generated by the voltage
regulator for LCD driver. Which way is to be used is specified by mask option.
There are three types of driving methods: 1/4duty, 1/3duty and 1/2duty. Software selects the duty
mode.
A mask option can select either a common driver or a segment driver for each LCD driver pin. A
mask option can also specify assignment of each bit of the display register to each segment. All the
display registers must be selected by a mask option.
L26 to L33 of the LCD driver can be configured to be output ports by a mask option.
The relationship between the duty, the bias method, and the maximum segment number follows:
1/4duty, 1/3 bias method
----------- 120 segments
1/3duty, 1/3 bias method
-----------
93 segments
1/2duty, 1/2 bias method
-----------
64 segments
Buzzer driver ( BD )
The ML64168 has a built-in buzzer driver with 15 buzzer output frequencies and 4 buzzer output
modes. Each buzzer output is selected by the Buzzer Control Register ( BDCON ) and the Buzzer
Frequency
Control
Register
(
BFCON
).
相關(guān)PDF資料 |
PDF描述 |
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| ML64P168-NGP | 4-BIT, OTPROM, 0.7 MHz, MICROCONTROLLER, PQFP80 |
| ML64P168-NGA | 4-BIT, OTPROM, 0.7 MHz, MICROCONTROLLER, PQFP80 |
| ML64P168-NGP | 4-BIT, OTPROM, 0.7 MHz, MICROCONTROLLER, PQFP80 |
| ML64P168-NGA | 4-BIT, OTPROM, 0.7 MHz, MICROCONTROLLER, PQFP80 |
| ML66517-GA | 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PDIP64 |
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