UPD753012GC NEC, UPD753012GC Datasheet - Page 44

• Manufacturer Part Number: UPD753012GC
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

44
(2) Legend in explanation of operation
A
B
C
D
E
H
L
X
XA
BC
DE
HL
XA’
BC’
DE’
HL’
PC
SP
CY
PSW
MBE
RBE
PORTn
IME
IPS
IEXXX
RBS
MBS
PCC
.
(XX)
XXH
: A register, 4-bit accumulator
: B register
: C register
: D register
: E register
: H register
: L register
: X register
: XA register pair; 8-bit accumulator
: BC register pair
: DE register pair
: HL register pair
: XA’ expanded register pair
: BC’ expanded register pair
: DE’ expanded register pair
: HL’ expanded register pair
: Program counter
: Stack pointer
: Carry flag, bit accumulator
: Program status word
: Memory bank enable flag
: Register bank enable flag
: Port n (n = 0-7)
: Interrupt master enable flag
: Interrupt priority selection register
: Interrupt enable flag
: Register bank selection register
: Memory bank selection register
: Processor clock control register
: Separation between address and bit
: The contents addressed by XX
: Hexadecimal data
PD753012, 753016, 753017