7220 Datasheet, PDF (20/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

OVERVIEW
1.1 Performance overview
1.1 Performance overview
The 8-bit microcomputers:
-M37221M4-XXXSP
-M37221M6-XXXSP/FP
-M37221M8-XXXSP
-M37221MA-XXXSP
-M37220M3-XXXSP/FP
have their simple instruction set; the ROM, RAM, and I/O addresses are placed on the same memory map
to enable easy programming.
Furthermore, they have many additional functions for tuning system for TV:
q PWM output (14-bit and 8-bit)
q CRT display
q A-D comparator (resistance string method)
q Software runaway detection
q Multi-master I²C-BUS interface function
q ROM correction function
And also, they can allow low power dissipation by the use of CMOS processing.
The M37221M6-XXXSP/FP is used as a general example in describing the functions of the above microcomputers,
unless otherwise noted.
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7220 Group User’s Manual