參數(shù)資料
型號(hào)： UPD62AMC-XXX-5A4-A
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封裝： 0.300 INCH, PLASTIC, SSOP-20
文件頁數(shù)： 37/62頁
文件大小： 272K
代理商： UPD62AMC-XXX-5A4-A
42
PD62A
Data Sheet U14474EJ2V0DS00
9.7 Branch Instructions
The program memory consists of pages in steps of 1K (000H to 3FFH). However, as the assembler automatically
performs page optimization, it is unnecessary to designate pages. The pages allowed for each product are as
follows.
PD62A (ROM: 0.5 K steps):
page 0
PD6P4B (PROM: 1 K steps) :
page 0
JMP addr
<1> Instruction code: page 0
0100010001
; page 1 0100110001
a9 a7 a6 a5 a4 a8 a3 a2 a1 a0
<2> Cycle count:
1
<3> Function:
PC
← addr
The 10 bits (PC9-0) of the program counter are replaced directly by the specified address addr (a9 to
a0).
JC addr
<1> Instruction code: page 0
0110010001
; page 1 0101010001
a9 a7 a6 a5 a4 a8 a3 a2 a1 a0
<2> Cycle count:
1
<3> Function:
If
CY = 1
PC
← addr
else
PC
← PC + 2
If the carry flag CY is set (to 1), a jump is made to the address specified with addr (a9 to a0).
JNC addr
<1> Instruction code: page 0
0110110001
; page 1 0101110001
a9 a7 a6 a5 a4 a8 a3 a2 a1a0
<2> Cycle count:
1
<3> Function:
If
CY = 0
PC
← addr
else
PC
← PC + 2
If the carry flag CY is cleared (to 0), a jump is made to the address specified with addr (a9 to a0).
JF addr
<1> Instruction code: page 0
0111010001
; page 1 1000010001
a9 a7 a6 a5 a4 a8 a3 a2 a1 a0
<2> Cycle count:
1
<3> Function:
If
F = 1
PC
← addr
else
PC
← PC + 2
If the status flag F is set (to 1), a jump is made to the address specified with addr (a9 to a0).
JNF addr
<1> Instruction code: page 0
0111110001
; page 1 1000110001
a9 a7 a6 a5 a4 a8 a3 a2 a1 a0
<2> Cycle count:
1
<3> Function:
If
F = 0
PC
← addr
else
PC
← PC + 2
If the status flag F is cleared (to 0), a jump is made to the address specified with addr (a9 to a0).
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