參數(shù)資料
型號(hào)： M34551E8-XXXFP
元件分類： 微控制器/微處理器
英文描述： 4-BIT, OTPROM, MICROCONTROLLER, PQFP48
封裝： 7 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-48
文件頁數(shù)： 103/154頁
文件大?。?/td> 1778K
代理商： M34551E8-XXXFP
4551 Group User’s Manual
HARDWARE
1-41
SYMBOL
The symbols shown below are used in the following list of instruction function and machine instructions.
Symbol
A
B
DR
E
V1
V2
I1
W1
W2
W3
C1
C2
CR
L1
L2
PU0
MR
X
Y
Z
DP
PC
PCH
PCL
SK
SP
CY
R1
R2
RLC
STCK
INSTK
T1
T2
TLC
T1F
T2F
Contents
Register A (4 bits)
Register B (4 bits)
Register D (3 bits)
Register E (8 bits)
Interrupt control register V1 (4 bits)
General-purpose register V2 (4 bits)
Interrupt control register I1 (4 bits)
Timer control register W1 (4 bits)
Timer control register W2 (4 bits)
Timer control register W3 (2 bits)
Carrier wave selection register C1 (4 bits)
Carrier wave output control register C2 (1 bit)
Carrier wave generating control flag
LCD control regiser L1
LCD control register L2
Pull-up control register PU0 (4 bits)
Clock control register MR (4 bits)
Register X (4 bits)
Register Y (4 bits)
Register Z (2 bits)
Data pointer (10 bits)
(It consists of registers X, Y, and Z)
Program counter (14 bits)
High-order 7 bits of program counter
Low-order 7 bits of program counter
Stack register (14 bits ! 8)
Stack pointer (3 bits)
Carry flag
Timer 1 reload register
Timer 2 reload register
Timer LC reload register
System clock
Instruction clock
Timer 1
Timer 2
Timer LC
Timer 1 interrupt request flag
Timer 2 interrupt request flag
Contents
Watchdog timer flag
Interrupt enable flag
External 0 interrupt request flag
Power down flag
Port D (8 bits)
Port P0 (4 bits)
Port P1 (4 bits)
Port P2 (4 bits)
Hexadecimal variable
Hexadecimal constant which represents the
immediate value
Hexadecimal constant which represents the
immediate value
Hexadecimal constant which represents the
immediate value
Binary notation of hexadecimal variable A
(same for others)
Direction of data movement
Data exchange between a register and memory
Decision of state shown before “?”
Contents of registers and memories
Negate, Flag unchanged after executing
instruction
RAM address pointed by the data pointer
Label indicating address a6 a5 a4 a3 a2 a1 a0
in page p5 p4 p3 p2 p1 p0
Hex. C + Hex. number x (also same for others)
Symbol
WDF
INTE
EXF0
P
D
P0
P1
P2
x
y
z
p
n
i
j
A3A2A1A0
←
?
( )
—
M(DP)
a
p, a
C
+
x
Note : The 4551 Group just invalidates the next instruction when a skip is performed. The contents of program counter is not
increased by 2. Accordingly, the number of cycles does not change even if skip is not performed. However, the cycle count
becomes “1” if the TABP p, RT, or RTS instruction is skipped.
SYMBOL
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