参数资料
型号: MC68HC705P6ACP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, DIP-28
文件页数: 73/98页
文件大小: 532K
代理商: MC68HC705P6ACP
Instruction Types
MC68HC705P6A Advance Information Data Sheet, Rev. 2.1
Freescale Semiconductor
75
13.3.3 Jump/Branch Instructions
Jump instructions allow the CPU to interrupt the normal sequence of the program counter. The
unconditional jump instruction (JMP) and the jump-to-subroutine instruction (JSR) have no register
operand. Branch instructions allow the CPU to interrupt the normal sequence of the program counter
when a test condition is met. If the test condition is not met, the branch is not performed.
The BRCLR and BRSET instructions cause a branch based on the state of any readable bit in the first
256 memory locations. These 3-byte instructions use a combination of direct addressing and relative
addressing. The direct address of the byte to be tested is in the byte following the opcode. The third byte
is the signed offset byte. The CPU finds the effective branch destination by adding the third byte to the
program counter if the specified bit tests true. The bit to be tested and its condition (set or clear) is part of
the opcode. The span of branching is from –128 to +127 from the address of the next location after the
branch instruction. The CPU also transfers the tested bit to the carry/borrow bit of the condition code
register.
Table 13-3. Jump and Branch Instructions
Instruction
Mnemonic
Branch if Carry Bit Clear
BCC
Branch if Carry Bit Set
BCS
Branch if Equal
BEQ
Branch if Half-Carry Bit Clear
BHCC
Branch if Half-Carry Bit Set
BHCS
Branch if Higher
BHI
Branch if Higher or Same
BHS
Branch if IRQ Pin High
BIH
Branch if IRQ Pin Low
BIL
Branch if Lower
BLO
Branch if Lower or Same
BLS
Branch if Interrupt Mask Clear
BMC
Branch if Minus
BMI
Branch if Interrupt Mask Set
BMS
Branch if Not Equal
BNE
Branch if Plus
BPL
Branch Always
BRA
Branch if Bit Clear
BRCLR
Branch Never
BRN
Branch if Bit Set
BRSET
Branch to Subroutine
BSR
Unconditional Jump
JMP
Jump to Subroutine
JSR
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相关代理商/技术参数
参数描述
MC68HC705P6ADW 制造商:Rochester Electronics LLC 功能描述:MCU, 176 BYTES RAM, A/D - Bulk
MC68HC705P6AMDW 功能描述:IC MCU 4.6K OTP 2.1MHZ 28-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 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
MC68HC705P6AMP 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705P6CDW 制造商:Motorola Inc 功能描述:
MC68HC705P6CP 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: