Panasonic MN101C77C User Manual

II - 29

Chapter 2 CPU Basics

Bank Function

2-6-3

Bank Memory Space

When bank function is used, the memory space, where CPU can access as data, shows as the following

hatched part.

Single Chip Mode

In single chip mode used internal ROM and internal RAM, an expanded bank area (bank 1, 2 and a part

of bank 3) is in the memory space of internal ROM. In the expanded bank area, reading out of table data

is enable, but rewrite is disable.

Figure 2-6-3 Single Chip Mode

Differs depending upon the model. [ Table 2-2-2. Internal ROM/ Internal RAM ]

00000

16 KB

00100

04000

10000

256 bytes

03F00

128 bytes

64 bytes

04080

040C0

48 KB

00C00

64 KB

20000

3FFFF

Read / Write

)

8 KB

)

Read

30000

64 KB

Instruction code

table data

Peripheral I/O

Interrupt

vector table

Subroutine

vector table

Data

abs8 addressing

access area

Internal RAM

I/O space

(Special Function Register)

Internal ROM

bank 1

bank 2

bank 3

bank 0