UPD75P3036 NEC, UPD75P3036 Datasheet - Page 18

• Manufacturer Part Number: UPD75P3036
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

18
6. PROGRAM COUNTER (PC) AND MEMORY MAP
6.1 Program Counter (PC) ... 14 bits
This is a 14-bit binary counter that stores program memory address data.
6.2 Program Memory (PROM) ... 16384 x 8 bits
The program memory consists of 16384 x 8-bit one-time PROM or EPROM.
• Addresses 0000H and 0001H
• Addresses 0002H to 000DH
• Addresses 0020H to 007FH
Note The GETI instruction realizes a 1-byte instruction on behalf of any 2-byte/3-byte instruction, or two 1-byte
Vector table wherein the program start address and the values set for the RBE and MBE at the time a RESET signal is
generated are written. Reset start is possible from any address.
Vector table wherein the program start address and the values set for the RBE and MBE by each vectored interrupt are
written. Interrupt processing can start from any address.
Table area referenced by the GETI instruction
instructions. It is used to decrease the number of program steps.
PC13 PC12
PC11
PC10
Figure 6-1. Configuration of Program Counter
PC9
PC8
Note
.
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PD75P3036
PC