NEC uPD78P078 - Manual (Page 529)

529
CHAPTER 23 EXTERNAL DEVICE EXPANSION FUNCTION
Memory maps when using the external device expansion function are as follows.
Figure 23-1. Memory Map when Using External Device Expansion Function (1/2)
(a) Memory map of
µ
PD78076, 78076Y,
and of
µ
PD78P078, 78P078Y when
internal PROM capacity is 48 Kbytes
FFFFH
SFR
Internal High-Speed RAM
FF00H
FEFFH
FB00H
FAFFH
FAE0H
FADFH
FAC0H
FABFH
F800H
F7FFH
F400H
F3FFH
D000H
CFFFH
C100H
C0FFH
C000H
BFFFH
0000H
Reserved
Buffer RAM
Reserved
Internal Expansion RAM
Full-Address Mode
(when MM2 to MM0 = 111)
or
16-Kbyte Expansion Mode
(when MM2 to MM0 = 101)
4-Kbyte Expansion Mode
(when MM2 to MM0 = 100)
256-byte Expansion Mode
(when MM2 to MM0 = 011)
Single-chip Mode