参数资料
型号: MC68HC705V8B
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, PDIP56
封装: SDIP-56
文件页数: 56/172页
文件大小: 890K
代理商: MC68HC705V8B
MOTOROLA
SECTION 16: INSTRUCTION SET
Page 138
MC68HC705V8 Specification Rev. 2.1
16.3
BRANCH INSTRUCTIONS
This set of instructions branches if a particular condition is met; otherwise, no operation is
performed. Branch instructions are 2-byte instructions. Refer to the following list for branch
instructions.
16.4
BIT MANIPULATION INSTRUCTIONS
The MCU is capable of setting or clearing any read/write bit that resides in the rst 256
bytes of the memory space where all port registers, port DDRs, timer, timer control, and on-
chip RAM reside. An additional feature allows the software to test and branch on the state
of any bit within these 256 locations. The bit set, bit clear, and bit test and branch functions
are each implemented with a single instruction. For test and branch instructions, the value
Function
Mnemonic
Increment
INC
Decrement
DEC
Clear
CLR
Complement
COM
Negate (Two’s Complement)
NEG
Rotate Left Thru Carry
ROL
Rotate Right Thru Carry
ROR
Logical Shift Left
LSL
Logical Shift Right
LSR
Arithmetic Shift Right
ASR
Test for Negative or Zero
TST
Function
Mnemonic
Branch Always
BRA
Branch Never
BRN
Branch if Higher
BHI
Branch if Lower or Same
BLS
Branch if Carry Clear
BCC
Branch if Higher or Same
BHS
Branch if Carry Set
BCS
Branch if Lower
BLO
Branch if Not Equal
BNE
Branch if Equal
BEQ
Branch if Half Carry Clear
BHCC
Branch if Half Carry Set
BHCS
Branch if Plus
BPL
Branch if Minus
BMI
Branch if Interrupt Mask Bit is Clear
BMC
Branch if Interrupt Mask Bit is Set
BMS
Branch if Interrupt Line is Low
BIL
Branch if Interrupt Line is High
BIH
Branch to Subroutine
BSR
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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