Sharp Newton MessagePad Service Manual page 4

2. Memory map explanation
00000000 +— 00000000
+
ROM
10000000 bibl
WOcard 00800000
20000000
2ND bank
ROM
SO 01000000 ;-—_____
01100000 | RAM (640K byte)
01200000 ;}———_—
2ND bank RAM
40000000 + 01400000
System
50000000 ->—,
60000000
70000000
7FFFFFFF
Card
control REG.
3. Chip select and related explanation
ASIC: APPLICATION
SPECIFIC
INTEGRATED
CIRCUIT
01800000
control REG. |