Example Of Rom Connection - NEC VR4181 mPD30181 User Manual

6.3.3 Example of ROM connection

(1) 32 Mbit ordinary ROM
ADD(20:0)
A(20:0)
ROMCS0#
ROM
Bank0
D(15:0)
DATA(15:0)
(2) 64 Mbit ordinary ROM
ADD(21:0)
A(21:0)
ROMCS0#
ROM
Bank0
D(15:0)
DATA(15:0)
120
CHAPTER 6 BUS CONTROL
A(20:0)
ROMCS1#
ROM
Bank1
D(15:0)
A(21:0)
ROMCS1#
ROM
Bank1
D(15:0)
User's Manual U14272EJ3V0UM
A(20:0)
ROMCS2#
ROM
Bank2
D(15:0)
A(21:0)
ROMCS2#
ROM
Bank2
D(15:0)
A(20:0)
ROMCS3#
ROM
Bank3
D(15:0)
A(21:0)
ROMCS3#
ROM
Bank3
D(15:0)