M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 49

• 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

2.5 Processor modes
The M37702 can operate in 3 processor modes: single-chip mode, memory expansion mode, and microprocessor
mode. Some pins’ functions, memory assignment, and access space vary according to the processor modes.
This section describes the differences between the processor modes. Figure 2.5.1 shows a memory assignment
in each processor mode.
Fig. 2.5.1 Memory assignment in each processor mode for M37702M2BXXXFP
00C000
00FFFF
00027F
000000
000080
16
16
16
16
16
Notes 1: Addresses 2
Single-chip mode
ROM area
SFR area
RAM area
Not used
Internal
Internal
2: Refer to “Appendix 1. Memory assignment” for products other than M37702M2BXXXFP.
: External area; Accessing this area make it possible to access external connected devices.
FFFFFF
00BFFF
010000
000280
16
to 9
Memory expansion mode
16
16
16
16
16
CENTRAL PROCESSING UNIT (CPU)
become a external area in the memory expansion mode and microprocessor mode.
RAM area
ROM area
SFR area
Internal
Internal
7702/7703 Group User’s Manual
Microprocessor mode
RAM area
SFR area
Internal
Memory expansion mode
Microprocessor mode
2.5 Processor modes
000002
000009
16
16
(Note 1)
2–21