參數(shù)資料
型號(hào)： M30843FJGP
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁(yè)數(shù)： 50/91頁(yè)
文件大?。?/td> 903K
代理商： M30843FJGP
53
38C2 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
NOTES ON PROGRAMMING
Processor Status Register
The contents of the processor status register (PS) after a reset are
undefined, except for the interrupt disable flag (I) which is “1.” After a
reset, initialize flags which affect program execution. In particular, it
is essential to initialize the index X mode (T) and the decimal mode
(D) flags because of their effect on calculations.
Interrupts
The contents of the interrupt request bits do not change immediately
after they have been written. After writing to an interrupt request reg-
ister, execute at least one instruction before performing a BBC or
BBS instruction.
Decimal Calculations
To calculate in decimal notation, set the decimal mode flag (D) to
“1,” then execute an ADC or SBC instruction. After executing an
ADC or SBC instruction, execute at least one instruction before
executing an SEC, CLC, or CLD instruction.
In decimal mode, the values of the negative (N), overflow (V), and
zero (Z) flags are invalid.
Timers
If a value n (between 0 and 255) is written to a timer latch, the
frequency division ratio is 1/(n+1).
The timers share the one frequency divider to generate the count
source. Accordingly, when each timer starts operating, initializing
the frequency divider is not executed. Therefore, when the frequency
divider is selected for the count source, the delay of the maximum
one cycle of the count source is generated until the timer starts
counting or the waveform is output from timer starts operating. Also,
the count source cannot be checked externally.
Multiplication and Division Instructions
The index X mode (T) and the decimal mode (D) flags do not affect
the MUL and DIV instruction.
The execution of these instructions does not change the contents
of the processor status register.
Ports
The contents of the port direction registers cannot be read. The fol-
lowing cannot be used:
The data transfer instruction (LDA, etc.)
The operation instruction when the index X mode flag (T) is “1”
The addressing mode which uses the value of a direction register
as an index
The bit-test instruction (BBC or BBS, etc.) to a direction register
The read-modify-write instructions (ROR, CLB, or SEB, etc.) to a
direction register.
Use instructions such as LDM and STA, etc., to set the port direction
registers.
Serial I/O
In clock synchronous serial I/O, if the receive side is using an exter-
nal clock and it is to output the SRDY signal, set the transmit enable
bit, the receive enable bit, and the SRDY output enable bit to “1.”
Serial I/O continues to output the final bit from the TXD pin after trans-
mission is completed.
A-D Converter
The comparator uses internal capacitors whose charge will be lost if
the clock frequency is too low.
Therefore, set the A-D clock frequency to 250 kHz or more.
Also, when the STP instruction is executed during the A-D conver-
sion, the A-D conversion is stopped immediately, the A-D conversion
completion bit is set to “1”, and the interrupt request is generated.
Instruction Execution Time
The instruction execution time is obtained by multiplying the number
of cycles shown in the list of machine instructions by the period of the
internal clock
φ.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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M30843FJGP D5 制造商:Renesas Electronics Corporation 功能描述:
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M30843FJGP#U3 功能描述:IC M32C MCU FLASH 512K 100LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:M16C™ M32C/80/84 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，SPI，UART/USART 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（16K x 16） 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱(chēng):ATMEGA324P-B15AZCT
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