Internal Memory; Rom And Boot Address; Ram - Epson S1C33210 Technical Manual

3 Internal Memory

This chapter explains the internal memory configuration.
Figure 3.1 shows the S1C33210 memory map.
Area 2 is used in debug mode only and it cannot be accessed in user mode (normal program execution status).

3.1 ROM and Boot Address

The S1C33210 does not have a built-in ROM. The boot address is fixed at 0x0C00000, and so external ROM/Flash
should be used in Area 10.
For setting up Area 10, refer to the "BCU (Bus Controller Unit)" in "S1C33210 FUNCTION PART" in this manual.

3.2 RAM

The S1C33210 has a built-in 8KB RAM. The RAM is allocated to Area 0, address 0x0000000 to address
0x0001FFF.
The internal RAM is a 32-bit sized device and data can be read/written in 1 cycle regardless of data size (byte, half-
word or word).
S1C33210 PRODUCT PART
Area Address
–
Areas 18 11
0xFFFFFFF
0x1000000
Area 10
0x0FFFFFF
0x0C00000
–
Areas 9 7
0x0BFFFFF
0x0400000
Area 6
0x03FFFFF
0x0380000
0x037FFFF
0x0300000
Area 5
0x02FFFFF
0x0200000
Area 4
0x01FFFFF
0x0100000
0x00FFFFF
Area 3
0x0080000
0x007FFFF
Area 2
0x0060000
Area 1
0x005FFFF
0x0050000
0x004FFFF
0x0040000
0x003FFFF
0x0030000
Area 0
0x002FFFF
0x0002000
0x0001FFF
0x0000000
Figure 3.1 Memory Map
EPSON
S1C33210
External Memory
External Memory
External Memory
External I/O (16-bit device)
External I/O (8-bit device)
Internal peripheral circuits
External Memory
(Reserved)
For middleware use
(Reserved)
For CPU, debug mode
(Mirror of internal
peripheral circuits)
Internal peripheral circuits
(Mirror of internal
peripheral circuits)
(Mirror of internal RAM)
Internal RAM (8KB)
3 INTERNAL MEMORY
A-13