參數(shù)資料
型號: μPD789011
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 19/44頁
文件大?。?/td> 271K
代理商: ΜPD789011
μ
PD789011, 789012
19
9.1.2 Description of “Operation” column
A
: A register ; 8-bit accumulator
X
: X register
B
: B register
C
: C register
D
: D register
E
: E register
H
: H register
L
: L register
AX
: AX register pair; 16-bit accumulator
BC
: BC register pair
DE
: DE register pair
HL
: HL register pair
PC
: Program counter
SP
: Stack pointer
PSW
: Program status word
CY
: Carry flag
AC
: Auxiliary carry flag
Z
: Zero flag
IE
: Interrupt request enable flag
NMIS
: Non-maskable interrupt servicing flag
( )
: Memory contents indicated by the address or register contents in parentheses
X
H
, X
L
: High 8 bits and low 8 bits of a 16-bit register
: Logical product (AND)
: Logical sum (OR)
: Exclusive logical sum (exclusive OR)
: Inverted data
addr16
: 16-bit immediate data or label
jdisp8
: signed 8-bit data (displacement value)
9.1.3 Description of “Flag Operation” column
(Blank) : Unchanged
0
: Clear to 0.
1
: Set to 1.
×
: Set/cleared according to the result
R
: Previously saved value is restored.
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