Intel MCS 51

in~.
MCS@-51PROGRAMMER’SGUIDE AND INSTRUCTION SET
Figure4 showsthe difYerentsegmentsof the on-chipRAM.
sol
4SI
14P
1.7
I3F
SCRATCH
Pm
ARSA
301
2s
. . . 7F
2P
AaaRLLs
20
0...
27
SSGMENT
18
3
IF
10
2
1?
RSGISIER
0s
1 OF
BANKS
00
0
07
270249-5
Figure 4.128 Bytes of RAM Direct and Indirect Addreeesble
2-7