參數(shù)資料
型號: UPD70320GJ-8-5BG
廠商: NEC Corp.
英文描述: V25TM 16/8-BIT SINGLE-CHIP MICROCONTROLLER
中文描述: V25TM 16/8-BIT單片機
文件頁數(shù): 9/74頁
文件大小: 439K
代理商: UPD70320GJ-8-5BG
9
μ
PD70320
2. INSTRUCTION SETS
The
μ
PD70320 instruction sets are upward-compatible with those of
μ
PD70108/70116 in native mode.
2.1 Instructions Added to
μ
PD70108/70116
The following instructions are newly added to the
μ
PD70108/70116.
(1) Conditional branch instruction
BTCLR ······· Bit test instruction used for special function registers
If, when this BTCLR is executed, the target special function register bit status is “1”, the bit is
reset (0) and the program is branched to short-label described in the operand. If the target bit
status is “0”, the program is moved to the next instruction. PSW is not changed in this instruction.
(Descriptive format)
Operand
Mnemonic
Special Function
Register Address
Special Function
Register Bit
Branch Address
BTCLR
sfr
imm3
short-label
(2) Interrupt instructions
RETRBI ······Return instruction used for register banks
This instruction is used to return the program from the interrupt service routine in which the
register bank switching function is used. It cannot be used for returning from vectored interrupt
servicing.
(Descriptive format)
Mnemonic
Operand
RETRBI
None
FINT ···········This instruction is used to report the interrupt controller that interrupt servicing has ended.
If an interrupt other than NMI, INT, and software interrupt is used, this instruction must be
executed prior to the instruction for returning from interrupt servicing. It should not be used for
NMI, INT and software interrupts.
(Descriptive format)
(3) CPU instruction
STOP ········· Instruction for transition to STOP state
(Descriptive format)
Mnemonic
Operand
FINT
None
Mnemonic
Operand
STOP
None
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