GPCE048A

© Generalplus Technology Inc.

Proprietary & Confidential

2

Oct. 04, 2013

Version: 1.3

Table of Contents

PAGE

1.

  GENERAL DESCRIPTION.......................................................................................................................................................................... 3 

2.

  BLOCK DIAGRAM ...................................................................................................................................................................................... 3 

3.

  FEATURES.................................................................................................................................................................................................. 3 

4.

  APPLICATION FIELD.................................................................................................................................................................................. 3 

5.

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

5.1.

  PAD ASSIGNMENT ................................................................................................................................................................................. 5 

5.2.

  PIN MAP ............................................................................................................................................................................................... 6 

6.

  FUNCTIONAL DESCRIPTIONS.................................................................................................................................................................. 7 

6.1.

  CPU ..................................................................................................................................................................................................... 7 

6.2.

  MEMORY ............................................................................................................................................................................................... 7 

6.3.

  PLL, CLOCK, POWER MODE................................................................................................................................................................... 7 

6.4.

  STANDBY MODE..................................................................................................................................................................................... 7 

6.5.

  LOW VOLTAGE DETECTION AND LOW VOLTAGE RESET............................................................................................................................. 8 

6.6.

  INTERRUPT............................................................................................................................................................................................ 8 

6.7.

  I/O ........................................................................................................................................................................................................ 8 

6.8.

  SPECIAL FUNCTION IN PORT................................................................................................................................................................... 9 

6.9.

  TIMER / COUNTER................................................................................................................................................................................ 10 

6.10.

 SLEEP MODE, WAKEUP, HALT MODE, AND WATCHDOG ...........................................................................................................................11 

6.11.

 SOFT RESET PROTECTION ................................................................................................................................................................... 12 

6.12.

 ADC (ANALOG TO DIGITAL CONVERTER) / DAC .................................................................................................................................... 12 

6.13.

 SPI ..................................................................................................................................................................................................... 12 

6.14.

 AUDIO ALGORITHM............................................................................................................................................................................... 12 

7.

  ELECTRICAL SPECIFICATIONS ............................................................................................................................................................. 13 

7.1.

  ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................................. 13 

7.2.

  DC CHARACTERISTICS (VDD_REG = 3.3V, VDDIO = 4.5V (PORTA & B), TA = 25℃)............................................................................ 13 

7.3.

  DC CHARACTERISTICS (VDD_REG = 3.3V, VDDIO = 3.3V (PORTA & B), TA = 25℃)............................................................................ 13 

7.4.

  ADC CHARACTERISTICS (AVDD = 3.3V, TA = 25℃).............................................................................................................................. 14 

7.5.

  DAC CHARACTERISTICS (AVDD = 3.3V, TA = 25℃).............................................................................................................................. 14 

7.6.

  REGULATOR CHARACTERISTICS ( TA = 25℃) ........................................................................................................................................ 15 

7.7.

  PULL HIGH RESISTER AND VDDIO........................................................................................................................................................ 15 

7.8.

  PULL LOW RESISTER AND VDDIO(NORMAL PAD) ................................................................................................................................. 15 

7.9.

  PULL LOW RESISTER AND VDDIO(IOB[7:0] PAD WITH INPUT HIGH)....................................................................................................... 15 

7.10.

 I/O OUTPUT HIGH CURRENT IOH AND VDDIO ........................................................................................................................................ 15 

7.11.

 I/O OUTPUT LOW CURRENT IOL AND VDDIO(NORMAL PAD) ................................................................................................................... 16 

7.12.

 I/O OUTPUT LOW CURRENT IOL AND VDDIO(HIGH DRIVING PAD)............................................................................................................ 16 

7.13.

 DAC OUTPUT CURRENT IOL AND AVDD............................................................................................................................................... 16 

8.

  APPLICATION CIRCUITS ......................................................................................................................................................................... 17 

8.1.

  APPLICATION CIRCUIT-(1)..................................................................................................................................................................... 17 

8.2.

  APPLICATION CIRCUIT-(2)..................................................................................................................................................................... 19 

8.3.

  APPLICATION CIRCUIT-(3)..................................................................................................................................................................... 21 

9.

  PACKAGE/PAD LOCATIONS ................................................................................................................................................................... 23 

9.1.

  ORDERING INFORMATION ..................................................................................................................................................................... 23 

9.2.

  PACKAGE INFORMATION....................................................................................................................................................................... 23 

10.

 DISCLAIMER............................................................................................................................................................................................. 24 

11.

 REVISION HISTORY ................................................................................................................................................................................. 25