DESCRIPTION

The M37210M3-XXXSP/FP is a single-chip microcomputer designed with CMOS silicon gate technology. It is housed in a 52-pin shrink plastic molded DIP or a 64-pin plastic molded QFP. This single-chip microcomputer is useful for the channel selection system for TVs because it provides PWM function, OSD display function and so on. In addition to their simple instruction sets, the ROM, RAM, and I/O addresses are placed on the same memory map to enable easy programming.

FEATURES

• Number of basic instructions ..................................................... 69

• Memory size ROM ................ 12 K bytes (M37210M3-XXXSP/FP)

16 K bytes (M37210M4-XXXSP)

8 K bytes (M37211M2-XXXSP)

RAM ................. 256 bytes (M37210M3-XXXSP/FP)

320 bytes (M37210M4-XXXSP)

192 bytes (M37211M2-XXXSP)

ROM for display......................................... 3 K bytes

RAM for display .......................................... 72 bytes

• The minimum instruction execution time

........................................... 0.5µs (at 8MHz oscillation frequency)

• Power source voltage ..................................................... 5V ± 10

• Power dissipation .............................................................. 110mW

(at 4MHz oscillation frequency, VCC = 5.5V, at CRT display)

• Subroutine nesting ............................................... 96 levels (Max.)

• Interrupts ....................................................... 12 types, 12 vectors

• 8-bit timers .................................................................................. 4

• Programmable I/O ports

(Ports P0, P1, P2, P3, P4) ......................................................... 25

• Output ports (ports P5, P6) ..........................................................8

• Output ports (ports P52, P56) ..................................................... 12

• 12 V withstand ports ....................................................................4

• Serial I/O ............................................................ 8-bit ✕ 1 channel

• PWM output circuit ............... (14-bit ✕ 1, 6-bit ✕ 8) ... M37210M3

M37210M4

(14-bit ✕ 1, 6-bit ✕ 6) .... M37211M2

• A-D comparator (5-bit resolution) ................................ 5 channels

• CRT display function

Display characters ..................................... 18 characters ✕ 2 lines

(16 lines max.)

Character kinds ................................................................ 96 kinds

Dot structure ............................................................. 12 ✕ 16 dots

Character size .................................................................... 3 kinds

Character color kinds (It can be specified by the character)

max. 7 kinds (R, G, B)

Raster color (max. 7 kinds)

Display layout

Horizontal ..................................................................... 64 levels

Vertical ....................................................................... 128 levels

Bordering (horizontal and vertical)

APPLICATION

TV