M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 356

• Manufacturer Part Number: M37702E6BFS
• Description: EPROM MCU/8BIT CMOS EMULATION CH
• Manufacturer: Renesas Electronics America

Specifications of M37702E6BFS

• Accessory Type: Emulator EPROM MCU
• For Use With/related Products: 7702
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATION
17.1 Memory expansion
Fig. 17.1.17 Example of ROM expansion (maximum model)
17–22
(2) Example of ROM expansion (maximum model)
Figure 17.1.17 shows a memory expansion example (maximum model) using a 2-Mbits ROM in the
microprocessor mode. Figure 17.1.18 shows the timing chart for this example.
CNV
BYTE
M37702S1B
A
16
X
/D
IN
SS
0
, A
A
A
A
D
X
15
8
17
1
1
R/W
/D
OUT
ALE
–A
/D
–D
/D
8
E
25 MHz
15
–
7
1
7
AC573
AC573
Circuit condition : Wait
LE
LE
D
D
AC04
Q
Q
Address bus
Data bus
A
2
1
8
A
–A
16
, A
15
17
7702/7703 Group User’s Manual
A
D
1
–A
0
–D
17
15
M5M27C202K-10
D
A
OE
0
0
–
–
A
D
16
15
CE
1: Use the elements of which propagation
2: Use the elements of which propagation
delay time is within 12 ns.
delay time is within 20 ns.
3FFFF
0000
0080
0280
16
16
16
16
Memory map
External ROM
(M5M27C202K)
Internal RAM
SFR ar ea
area
area