UPD61P34BGS View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD61P34BGS

Infrared remote control transmitter 4-bit single-chip microcontroller

NEC => Renesas Technology 

LIST OF FIGURES (2/2)

Figure No.

Title

Page

3-1

Timing Chart when Key is Pressed and Held .................................................................................. 108

3-2

Timing Chart for Key OFF Status ..................................................................................................... 109

3-3

Output Patterns Prior to Key Confirmation ...................................................................................... 112

3-4

Timing Chart of Key Combination Operation ................................................................................... 118

3-5

Operation Timing of Key Transfer Operation ................................................................................... 120

5-1

5-2

5-3

6-1

6-2

6-3

6-4

6-5

6-6

6-7

6-8

6-9

6-10

6-11

6-12

General Flow Chart ........................................................................................................................... 123

ROM Map .......................................................................................................................................... 124

Data Table Map ................................................................................................................................. 125

Chattering of Key Input Signal ......................................................................................................... 139

Key ON Judgment when Chattering Occurs .................................................................................... 140

80-key Key Matrix ............................................................................................................................. 141

Key Matrix .......................................................................................................................................... 142

Key Data (Key Position) ................................................................................................................... 142

Bit Configuration of Key Data when Input is via KI0 to KI3 .............................................................. 143

Bit Configuration of Key Data when Input is via S1 ......................................................................... 144

Configuration of Data Pointer ........................................................................................................... 144

Configuration of Timer Counter ........................................................................................................ 158

Time Management of Timer Counter ............................................................................................... 158

Method for Dividing Frame Space Transmission Times .................................................................. 162

Key OFF Check during Bit Data Transmission ................................................................................ 163

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