Single-Chip Mode - Panasonic F77G User Manual

2-2-2

Single-chip Mode

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.
48 KB
192 KB
* Differs depending upon the model. [
Model
MN101C77C
MN101CF77G
x'00000'
256 bytes
3 KB
x'00100'
x'00C00'
x'03F00'
256 bytes
x'04000'
128 bytes
x'04080'
64 bytes
x'040C0'
x'10000'
x'20000'
x'3FFFF'
Figure 2-2-1
Internal ROM
Address
X'04000' to X'0FFFF'
X'04000' to X'23FFF'
Table 2-2-2. Internal ROM / Internal RAM
abs 8 addressing
access area
Internal
RAM space
Data
Special function registers
Interrupt
vector table
Internal
Subroutine
ROM space
vector table
Instruction code/
table data
Reserved
MMOD pin = L
Single-chip Mode
Table 2-2-2. Internal ROM/ Internal RAM ]
bytes Address
48 K X'00000' to X'00BFF'
128 K X'00000' to X'017FF'
Chapter 2 CPU Basics
*
CS9
*
CS0
Internal RAM
bytes
3 K
6 K
II - 13
Memory Space