Panasonic MN101C77C User Manual

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Chapter 2    CPU Basics

Memory Space

In single-chip mode, the system consists of only internal memory. This is the optimized memory mode and

allows construction of systems with the highest performance.

The single-chip mode uses only internal ROM and internal RAM. The MN101C series devices offer up to 12

KB of RAM and up to 240 KB of ROM. This LSI offers 3 KB of RAM and 48 KB of ROM.

MMOD pin = L

Internal 

RAM space

Special function registers

x'00000'

x'00100'

3 KB

256 bytes

256 bytes

128 bytes

64 bytes

48 KB

x'03F00'

x'00C00'

x'04000'

x'04080'

x'040C0'

Internal 

ROM space

*

*

abs 8 addressing 

access area

Data

Interrupt 

vector table

Subroutine 
vector table

Instruction code/ 

table data

x'3FFFF'

192 KB

Reserved

CS0

CS9

x'20000'

x'10000'

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

Address

bytes

Address

bytes

MN101C77C

X'04000' to X'0FFFF'

48 K

X'00000' to X'00BFF'

3 K

MN101CF77G

X'04000' to X'23FFF'

128 K

X'00000' to X'017FF'

6 K

Internal  ROM

Internal RAM

Model