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参数资料
| 型号： | M38037M6H-XXXSP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PDIP64 |
| 封装： | 0.750 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-64 |
| 文件页数： | 26/119页 |
| 文件大小： | 1818K |
| 代理商： | M38037M6H-XXXSP |
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Rev.3.11
Apr 5, 2006
Page 12 of 113
REJ03B0017-0311
3803 Group (Spec.H)
[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 execute 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 8
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
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相关代理商/技术参数 |
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| M38037M8108F | 制造商:Panasonic Industrial Company 功能描述:IC |
| M38037M8H-194HP#U0 | 制造商:Renesas Electronics Corporation 功能描述:8BIT CISC - Trays |
| M38039FFHFP#U0 | 功能描述:IC 740 MCU FLASH 60K 64QFP 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 |
| M38039FFHHP | 功能描述:MCU 3/5V 56K+4K 64-LQFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| M38039FFH-HP#U | 制造商:Renesas Electronics Corporation 功能描述:8BIT 740 CISC 56KB FLASH 16.8MHZ 3.3/5V - Trays |
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