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GPCR20A Datasheet(PDF) 2 Page - Generalplus Technology Inc. |
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GPCR20A Datasheet(HTML) 2 Page - Generalplus Technology Inc. |
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2 / 12 page  GPCR20A 3. SIGNAL DESCRIPTIONS Mnemonic PIN No. Type Description ROSC 10 I The “ROSC” pin connects with an external resistor to VDD. To cooperate with a variable resistor, the frequency for recording and playing are adjustable to fulfill user’s specifications. REC0 20 I The record-request pin for one voice box (20 sec) or the 1’st box of al 2 boxes (10 sec for each). REC0 with pull high resistor, is active in low and start recording to 1’st voice box REC1 21 I REC1 , The record-request pin for the 2’nd box of 2 boxes (10 sec for each). REC1 with pull high resistor, is active in low and start recording to 2’nd voice box. PLAY0 18 I PLAY0 The play-request pin for one voice box (20 sec) or the 1’st box of 2 boxes (10 sec for each). PLAY0 with pull high resistor, is active in low and start playing from 1’st voice box PLAY1 19 I PLAY1 , The play-request pin for the 2’nd box of total 2 boxes (10 sec for each). PLAY1 With pull high resistor, is active in low and start playing from 2’nd voice box MICP 2 I Microphone differential positive input MICN 3 I Microphone differential negative input AGC 5 I Automatic gain control input MICOUT 4 O Analog output of MIC preamplifier ADIP 6 I Analog input of low pass filter REC_BUSY 17 O The state of this pin will be low while recording. AUDP 23 O PWM driver positive output AUDN 24 O PWM driver negative output PVDD, PVSS 22, 25 Power PWM power and ground AVDD, AVSS 8, 1 Power Analog power and ground VDD, VSS 13, 11 Power Digital power and ground PLAY_BUSY 16 O The state of this pin is low while playing. KEY_OPT (*1) 7 I Bounding option for select one voice box or two voice boxes EDGE_OPT (*2) 12 I Bounding option for KEY is active in level trigger or edge trigger AUTO_OPT (*3) 7 I Bounding option for REC KEY auto-play-back function when record is finished. BEEP_OPT (*4) 9 I Bounding option for BEEP sound is enable or disable TEST 15 I TEST pin active high is in test mode (*1) KEY_OPT: Bounding option for select one voice box or two voice boxes, IF KEY_OPT = 0 One voice box mode 512K. IF KEY_OPT = 1 Two voice box mode 256K for each. Default setting is 0 (*2) EDGE_OPT: Bounding option for REC KEY auto-play-back function when record is finished. IF EDGE_OPT = 0 level trigger. IF EDGE_OPT = 1 edge trigger. Default setting is 0 (*3) AUTO_OPT: Bounding option for REC KEY auto-play-back function when record is finished. IF AUTO_OPT = 0 No auto play when record is finished. IF AUTO_OPT = 1 Auto play when record is finished. Default setting is 0 (*4) BEEP_OPT: Bounding option for BEEP sound is enable or disable. IF BEEP_OPT = 0 No beep mode. IF BEEP_OPT = 1 Beep mode Default setting is 0 If there’s no bounding option selected, the default setting will be kept low. © Generalplus Technology Inc. Proprietary & Confidential 2 MAR. 03, 2005 Version: 1.1 |
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