- 您现在的位置：买卖IC网 > PDF目录80462 > M38507F8AFP 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PDSO42 PDF资料下载
参数资料
| 型号： | M38507F8AFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PDSO42 |
| 封装： | 8.40 X 17.50 MM, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件页数： | 59/59页 |
| 文件大小： | 885K |
| 代理商： | M38507F8AFP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页当前第59页
Rev.2.13
Apr 17, 2009
Page 9 of 56
REJ03B0125-0213
3850 Group (Spec.A QzROM version)
[Processor status register (PS)]
The processor status register is an 8-bit register consisting of 5
flags which indicate the status of the processor after an
arithmetic operation and 3 flags which decide MCU operation.
Branch operations can be performed by testing the Carry (C)
flag, Zero (Z) flag, Overflow (V) flag, or the Negative (N) flag.
In decimal mode, the Z, V, N flags are not valid.
Bit 0: Carry flag (C)
The C flag contains a carry or borrow generated by the
arithmetic logic unit (ALU) immediately after an arithmetic
operation. It can also be changed by a shift or rotate
instruction.
Bit 1: Zero flag (Z)
The Z flag is set if the result of an immediate arithmetic
operation or a data transfer is “0”, and cleared if the result is
anything other than “0”.
Bit 2: Interrupt disable flag (I)
The I flag disables all interrupts except for the interrupt
generated by the BRK instruction.
Interrupts are disabled when the I flag is “1”.
Bit 3: 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.
Bit 4: Break flag (B)
The B flag is used to indicate that the current interrupt was
generated by the BRK instruction. The BRK flag in the
processor status register is always “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 “1”.
Bit 5: Index X mode flag (T)
When the T flag is “0”, arithmetic operations are performed
between accumulator and memory. When the T flag is “1”,
direct arithmetic operations and direct data transfers are
enabled between memory locations.
Bit 6: 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 +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.
Bit 7: Negative flag (N)
The N flag is set if the result of an arithmetic operation or
data transfer is negative. When the BIT instruction is
executed, bit 7 of the memory location operated on by the
BIT instruction is stored in the negative flag.
Table 6
Set and clear instructions of each bit of processor status register
C flag
Z flag
I flag
D flag
B flag
T flag
V flag
N flag
Set instruction
SEC
SEI
SED
SET
Clear instruction
CLC
CLI
CLD
CLT
CLV
相关PDF资料 |
PDF描述 |
|---|---|
| MC68EN360RC33 | RISC MICROCONTROLLER, CPGA241 |
| MC56F8365MFG60 | 4-BIT, 120 MHz, OTHER DSP, PQFP128 |
| MPC8378ECVRANDA | 32-BIT, 266 MHz, MICROPROCESSOR, PBGA689 |
| MB95F214KPH-G-SNE2 | 8-BIT, FLASH, MICROCONTROLLER, PDIP8 |
| MC9S12XS128J1VALR | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP112 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M38507F8AFP#U1 | 功能描述:IC 740/3850 MCU FLASH 42SSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 产品培训模块:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 标准包装:1 系列:M16C™ M32C/80/87 核心处理器:M32C/80 芯体尺寸:16/32-位 速度:32MHz 连通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外围设备:DMA，POR，PWM，WDT 输入/输出数:121 程序存储器容量:384KB（384K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:24K x 8 电压 - 电源 (Vcc/Vdd):3 V ~ 5.5 V 数据转换器:A/D 34x10b，D/A 2x8b 振荡器型:内部 工作温度:-20°C ~ 85°C 封装/外壳:144-LQFP 包装:托盘 产品目录页面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M38507F8AFP#W1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 3/5V 32K PB-FREE 42-SSOP T&R - Tape and Reel |
| M38507F8FP | 制造商:Renesas Electronics Corporation 功能描述:MCU 8-Bit 740 CISC 32KB Flash 5V 42-Pin SSOP 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#U1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#W1 | 制造商:Renesas Electronics Corporation 功能描述:FLASH 8-BIT 2.7 TO 5.5V PBFREE |
发布紧急采购，3分钟左右您将得到回复。