參數(shù)資料
型號： MC68HC705JP7S
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP28
封裝： WINDOWED, CERAMIC, DIP-28
文件頁數(shù)： 34/164頁
文件大?。?/td> 1165K
代理商： MC68HC705JP7S
Instruction Types
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
129
14.3.3 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 14-3. 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/VPP Pin High
BIH
Branch if IRQ/VPP 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
相關(guān)PDF資料
PDF描述
MC68HRC705JP7CP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
MC68HC705SP7CP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28
MC68HC705JP7CDW 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705JJ7CDW 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
MC68HC705JJ7CP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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MC68HC705KJ1CDW 功能描述:8位微控制器 -MCU 8 Bit 4MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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MC68HC705L32FU 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
MC68HC705L5FUE 功能描述:8位微控制器 -MCU 705L5-EPP-80QFP-6019 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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