11

µPD6P4B

Data Sheet U13594EJ2V1DS00

2.1 Program Memory (One-time PROM) ... 1002 steps

× 10 bits

This one-time PROM is configured with 10 bits per step and is addressed by the program counter.

The program memory stores programs and table data.

The 22 steps from addresses 3EAH through 3FFH constitute a test program area and must not be used.

Figure 2-1. Program Memory Map

Note Even if execution jumps to the test program area by mistake, it returns to address 000H.

10 bits

000H

3E9H

3EAH

3FFH

Test program areaNote