7220 Datasheet, PDF (9/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

Table of contents
CHAPTER 4. M37220M3-XXXSP/FP
4.1 Performance overview .......................................................................................................... 4-2
4.2 Pin configuration ................................................................................................................... 4-4
4.3 Pin description ...................................................................................................................... 4-6
4.4 Functional block diagram ................................................................................................... 4-8
4.5 Functional description ......................................................................................................... 4-9
4.5.1 Access area .................................................................................................................. 4-10
4.5.2 Memory assignment ..................................................................................................... 4-11
4.5.3 Input/Output pins ......................................................................................................... 4-14
4.5.4 Interrupts ....................................................................................................................... 4-15
4.5.5 D-A converter ............................................................................................................... 4-17
4.5.6 CRT Display function .................................................................................................. 4-19
4.5.7 Internal state immediately after reset ....................................................................... 4-26
4.6 Electrical characteristics ................................................................................................... 4-28
4.7 Standard characteristics.................................................................................................... 4-32
CHAPTER 5. APPLICATION
5.1 Example of multi-line display............................................................................................. 5-2
5.1.1 Specifications ................................................................................................................. 5-2
5.1.2 Connection example ...................................................................................................... 5-2
5.1.3 General flowchart ........................................................................................................... 5-3
5.1.4 Set of display character data ....................................................................................... 5-6
5.1.5 Line counter.................................................................................................................... 5-7
5.1.6 Processing time ............................................................................................................. 5-8
5.1.7 Set of multiple interrupts .............................................................................................. 5-9
5.2 Notes on programming for OSD (M37220M3-XXXSP/FP) ........................................... 5-13
5.2.1 Setting of color registers ............................................................................................ 5-13
5.2.2 Setting of border selection register ........................................................................... 5-14
5.2.3 Number of display characters .................................................................................... 5-14
5.3 Usage example of ROM correction function (M37221M8/MA-XXXSP) ..................... 5-15
5.3.1 Connection example .................................................................................................... 5-15
5.3.2 Correction example ...................................................................................................... 5-15
5.3.3 E²PROM map ............................................................................................................... 5-17
5.3.4 General flowchart ......................................................................................................... 5-19
5.3.5 Notes on use ................................................................................................................ 5-20
5.4 Example of I²C-BUS interface control (M37221Mx-XXXSP/FP) .................................. 5-21
5.4.1 Specifications ............................................................................................................... 5-21
5.4.2 Connection example .................................................................................................... 5-21
5.4.3 E²PROM functions ....................................................................................................... 5-22
5.4.4 General flowchart ......................................................................................................... 5-23
5.5 Example of I²C-BUS control by software (M37220M3-XXXSP/FP) ............................ 5-26
5.5.1 Specifications ............................................................................................................... 5-26
5.5.2 Connection example .................................................................................................... 5-26
5.5.3 Single-chip color TV signal processor function ....................................................... 5-27
5.5.4 General flowchart ......................................................................................................... 5-28
5.5.5 Data setting according to key processing ................................................................ 5-34
5.5.6 Flowchart of data setting according to key processing .......................................... 5-36
5.5.7 Register map ................................................................................................................ 5-39
5.6 Application circuit example .............................................................................................. 5-45
5.6.1 Application circuit example 1 ..................................................................................... 5-45
5.6.2 Application circuit example 2 ..................................................................................... 5-46
7220 Group User’s Manual
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