W741E260 Datasheet, PDF (8/94 Pages) Winbond – 4-BIT FLASH MICROCONTROLLER

W741E260
000H
16 bits
2048
address
TABH TABL ACC
-xxx xxxx xxyy
Offset
011x xxxx xxxx
600H
3210
7FFH
2048 x 16-bit
ROM address = 600H + Offset/4
This area can be used to store both instruction code
and look-up table
Each element (4 bits) of the look-up table
Data Memory (RAM)
Figure 1. Program Memory Organization
1. Architecture
The static data memory (RAM) used to store data is arranged as 128 × 4 bits. The data memory can
be addressed directly or indirectly. The organization of the data memory is shown in Figure 2.
4 bits
00H
:
Working Register
0FH
128
address
7FH
128 x 4-bit
Figure 2. Data Memory Organization
-8-