參數(shù)資料
型號: UPD754202GS
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁數(shù): 36/66頁
文件大?。?/td> 302K
代理商: UPD754202GS
36
μ
PD754202, 754202(A)
(2) Legend in explanation of operation
A
: A register; 4-bit accumulator
B
: B register
C
: C register
D
: D register
E
: E register
H
: H register
L
: L register
X
: X register
XA
: XA register pair; 8-bit accumulator
BC
: BC register pair
DE
: DE register pair
HL
: HL register pair
XA’
: XA’ extended register pair
BC’
: BC’ extended register pair
DE’
: DE’ extended register pair
HL’
: HL’ extended register pair
PC
: Program counter
SP
: Stack pointer
CY
: Carry flag; bit accumulator
PSW
: Program status word
MBE
: Memory bank enable flag
RBE
: Register bank enable flag
PORTn
: Port n (n = 3, 6, 7, 8)
IME
: Interrupt master enable flag
IPS
: Interrupt priority selection register
IE
×××
: Interrupt enable flag
RBS
: Register bank selection register
MBS
: Memory bank selection register
PCC
: Processor clock control register
.
: Separation between address and bit
(
××
)
: The contents addressed by
××
××
H
: Hexadecimal data
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