- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370847 > M37640E8 (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER PDF資料下載
參數(shù)資料
| 型號： | M37640E8 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER |
| 中文描述： | 單芯片8位CMOS單片機 |
| 文件頁數(shù)： | 18/172頁 |
| 文件大小： | 1193K |
| 代理商： | M37640E8 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁
2-6
7/9/98
Central Processing Unit
7600 Series
M37640E8-XXXF Preliminary Specification
Mitsubishi Microcomputers
Zero Flag (Z)
The Z flag is set if the result of an arithmetic operation or a data transfer is “0”, and cleared if the
result is anything other than “0”.
Interrupt Disable Flag (I)
The I flag disables all interrupts except for the interrupt generated by the BRK instruction and any
non-maskable interrupts, if available. Interrupts are disabled when the I flag is “1”. When an
interrupt occurs, this flag is automatically set to a “1” to prevent other interrupts from interfering
until the current interrupt service routine is completed. The I flag can be set by the set interrupt
disable (SEI) instruction and cleared by the clear interrupt disable (CLI) instruction.
Decimal Mode Flag (D)
The D flag determines whether additions and subtractions are executed in binary or decimal. Binary
arithmetic is executed when this flag is “0”; decimal arithmetic is executed when it is “1”. Decimal
correction is automatic in decimal mode. Only the ADC and SBC instructions can be used for
decimal arithmetic. The D flag can be set by the set decimal mode (SED) instruction and cleared by
the clear decimal mode (CLD) instruction.
Break Flag (B)
The B flag is used to indicate whether the current interrupt was generated by the BRK instruction.
The BRK flag in the processor status register is nominally “0”. When the BRK instruction is used
to generate an interrupt, the processor status register is pushed onto the stack with the break flag set
to a “1”. The saved processor status is the only place where the break flag is ever set.
Index X Mode Flag (T)
When the T flag is “0”, arithmetic operations are performed between accumulator and memory, and
the results are stored in the accumulator. When the T flag is “1”, direct arithmetic operations and
direct data transfers are enabled between memory and memory, as well as between I/O and I/O. The
result of an arithmetic operation performed on data in memory location 1 and memory location 2 is
stored in memory location 1.
The address of memory location 1 is specified by index register X, and the address of memory
location 2 is specified by normal addressing modes. The T flag can be set by the set T flag (SET)
instruction and cleared by the clear T flag (CLT) instruction. Because the T flag directly affects
calculations, it should be initialized after a reset.
Overflow Flag (V)
The V flag is used during the addition or subtraction of one byte of signed data. It is set if the
result exceeds the range from +127 to -128. When the BIT instruction is executed, bit 6 of the
memory location operated on by the BIT instruction is stored in the overflow flag. The V flag can
be cleared by the CLV instruction, but there is no set instruction. In decimal mode, the V flag is
invalid.
Negative Flag (N)
The N flag is set if the result of an arithmetic operation or data transfer is negative, that is (bit 7
is “1”). When the BIT instruction is executed, bit 7 of the memory location operated by the BIT
instruction is stored in the negative flag. There are no instructions for directly setting or clearing the
N flag.
相關PDF資料 |
PDF描述 |
|---|---|
| M37641F8-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37641F8-XXXHP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37641M8-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37641M8 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37641F8FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M37640E8FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37640E8FS | 功能描述:EPROM MCU/8BIT CMOS EMULATION CH RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 標準包裝:1 系列:- 附件類型:適配器板 適用于相關產(chǎn)品:RCB230，RCB231，RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE |
| M37640M4T | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37640M8-111FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37640M8-126FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復。