GPL16258VB

© Generalplus Technology Inc.

Proprietary & Confidential

2

Nov. 24, 2016

Version: 1.0

Table of Contents

PAGE

1. GENERAL DESCRIPTION .......................................................................................................................................................................... 4

2. BLOCK DIAGRAM ...................................................................................................................................................................................... 4

3. FEATURES .................................................................................................................................................................................................. 4

4. SIGNAL DESCRIPTIONS............................................................................................................................................................................ 5

4.1. PAD ASSIGNMENT ................................................................................................................................................................................. 9

4.2. PIN MAP .............................................................................................................................................................................................. 10

5. FUNCTIONAL DESCRIPTIONS ................................................................................................................................................................ 11

5.1. CPU ....................................................................................................................................................................................................11

5.2. MEMORY ..............................................................................................................................................................................................11

5.2.1. Internal SRAM..........................................................................................................................................................................11

5.2.2. External memory ......................................................................................................................................................................11

5.3. PLL, CLOCK, POWER MODE..................................................................................................................................................................11

5.3.1. PLL (Phase Lock Loop)............................................................................................................................................................11

5.3.2. System clock ............................................................................................................................................................................11

5.4. POWER SAVINGS MODE ........................................................................................................................................................................11

5.5. PICTURE PROCESS UNIT .......................................................................................................................................................................11

5.6. VIDEO INPUT INTERFACE ...................................................................................................................................................................... 12

5.7. SOUND PROCESS UNIT ........................................................................................................................................................................ 12

5.8. VIDEO OUTPUT INTERFACE................................................................................................................................................................... 12

5.8.1. STN-LCD Interface ................................................................................................................................................................. 12

5.8.2. TFT-LCD Interface .................................................................................................................................................................. 12

5.8.3. TV encoder ............................................................................................................................................................................. 12

5.9. INTERRUPT .......................................................................................................................................................................................... 12

5.10.GPIO .................................................................................................................................................................................................. 12

5.11. TIMER / COUNTER................................................................................................................................................................................ 12

5.12.WATCHDOG ......................................................................................................................................................................................... 13

5.13.SERIAL INTERFACE............................................................................................................................................................................... 13

5.13.1.

Serial Peripheral Interface (SPI)......................................................................................................................................... 13

5.13.2.

USB Device Function ......................................................................................................................................................... 13

5.14.IDE TOOLS FUNCTION ......................................................................................................................................................................... 13

5.15.SD/MMC CONTROLLER ....................................................................................................................................................................... 13

5.16.REAL TIME CLOCK (RTC)..................................................................................................................................................................... 14

5.17.ANALOG CONTROL............................................................................................................................................................................... 14

5.17.1.

DAC control ........................................................................................................................................................................ 14

6. ELECTRICAL SPECIFICATIONS ............................................................................................................................................................. 15

6.1. ABSOLUTE MAXIMUM RATING ............................................................................................................................................................... 15

6.2. DC CHARACTERISTICS......................................................................................................................................................................... 15

6.3. VIDEO DAC CHARACTERISTICS ............................................................................................................................................................ 15

6.4. AUDIO DAC CHARACTERISTICS............................................................................................................................................................ 16

6.5. REGULATOR CHARACTERISTICS............................................................................................................................................................ 16

7. RECOMMENDED BOARD LAYOUT......................................................................................................................................................... 17

7.1. POWER AND GROUND .......................................................................................................................................................................... 17

7.2. CRYSTAL AND PLL ............................................................................................................................................................................... 17