參數(shù)資料
型號(hào)： M37560EFDFP
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁(yè)數(shù)： 57/92頁(yè)
文件大?。?/td> 1507K
代理商： M37560EFDFP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
57
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”. Af-
ter a reset, initialize flags (T flag, D flag, etc.) which affect program
execution.
Interrupt
When the contents of an interrupt request bits are changed by the
program, execute a BBC or BBS instruction after at least one in-
struction. This is for preventing executing a BBC or BBS
instruction to the contents before change.
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 a SEC, CLC, or CLD instruction.
In decimal mode, the values of the negative (N), overflow (V), and
zero (Z) flags are invalid.
Multiplication and Division Instructions
The index 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
Use instructions such as LDM and STA, etc., to set the port direc-
tion registers.
The contents of the port direction registers cannot be read.
The following cannot be used:
LDA instruction
The memory operation instruction when the T flag is “1”
The bit-test instruction (BBC or BBS, etc.)
The read-modify-write instruction (calculation instruction such as
ROR etc., bit manipulation instruction such as CLB or SEB etc.)
The addressing mode which uses the value of a direction regis-
ter as an index
Serial I/O
In clock synchronous serial I/O, if the receive side is using an ex-
ternal clock and it is to output the SRDY signal, set the transmit en-
able bit, the receive enable bit, and the SRDY output enable bit to
“1”.
The TxD pin of serial I/O1 retains the level then after transmission
is completed.
In serial I/O2 selecting an internal clock, the SOUT2 pin goes to
high impedance state after transmission is completed.
In serial I/O2 selecting an external clock, the SOUT2 pin retains the
level then after transmission is completed.
A-D Converter
The input to the comparator is combined by internal capacitors.
Therefore, since conversion accuracy may be worse by losing of
an electric charge when the conversion speed is not enough,
make sure that f(XIN) is at least 500 kHz during an A-D conver-
sion.
The normal operation of A-D conversion cannot be guaranteed
when performing the next operation:
When writing to CPU mode register during A-D conversion op-
eration
When writing to A-D control register during A-D conversion op-
eration
When executing STP instruction or WIT instruction during A-D
conversion operation
Instruction Execution Time
The instruction execution time is obtained by multiplying the fre-
quency of the system clock
φ by the number of cycles needed to
execute an instruction.
The number of cycles required to execute an instruction is shown
in the list of machine instructions.
The frequency of the system clock
φ depends on the main clock
division ratio selection bit and the system clock selection bit.
相關(guān)PDF資料
PDF描述
M37560MFA-XXXFP 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP100
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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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M37560EFD-XXXFS 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37560EFD-XXXGP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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