M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 273

• 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

Fig. 12.1.2 External area
(1) External bus (A
External areas are specified by the address (A
Pins A
to the same pins. When the BYTE pin level, described later, is “L” (i.e., external data bus width is
16 bits), the A
with time-sharing. When the BYTE pin level is “H” (i.e., external data bus width is 8 bits), the
A
A
16
15
/D
output addresses.
0
8
to A
to A
23
Note: Addresses 2
/D
23
CONNECTION WITH EXTERNAL DEVICES
FFFFFF
8
7
of the external address bus and pins D
10000
/D
C000
pins perform address output and data input/output with time-sharing, and pins A
: External area
Memory expansion mode
280
0
8
80
to A
0
to A
16
16
16
16
16
16
Internal RAM
Internal ROM
7
15
, A
SFR area
/D
16
(Note)
area
area
to 9
15
8
/D
and A
16
8
become an external area.
to A
12.1 Signals required for accessing external devices
7702/7703 Group User’s Manual
16
15
/D
/D
0
15
to A
, A
16
23
/D
/D
0
to A
0
7
to A
pins perform address output and data input/output
23
) output. Figure 12.1.2 shows the external area.
0
23
/D
to D
FFFFFF
7
)
15
280
80
of the external data bus are assigned
0
Microprocessor mode
16
16
16
16
Internal RAM
SFR area
(Note)
area
12–5
8
to