UPD62A NEC, UPD62A Datasheet - Page 31

• Manufacturer Part Number: UPD62A
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

9.2 Circuit Symbol Description
A:
ASR:
addr:
CY:
data4:
data8:
data10:
F:
PC:
Pn:
P0n:
P1n:
ROMn:
Rn:
R0n:
R1n:
SP:
T:
T0:
T1:
( ):
Accumulator
Address Stack Register
Program memory address
Carry flag
4-bit immediate data
8-bit immediate data
10-bit immediate data
Status flag
Program Counter
Port register pair (n = 0, 1, 3, 4)
Port register (low-order 4 bits)
Port register (high-order 4 bits)
Bit n of the program memory’s (n = 0 to 9)
Register pair
Data memory (General-purpose register; n = 0 to F)
Data memory (General-purpose register; n = 0 to F)
Stack Pointer
Timer register
Timer register (low-order 4 bits)
Timer register (high-order 4 bits)
Content addressed with
Data Sheet U14474EJ1V0DS00
PD62A
31