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GPTC6608A

Description
Document
Tools
Sample Code
Video

Working Voltage(V)	Max. CPU Speed(MHz)	ROM(byte)	RAM(byte)	I/O	Max. LCD Dots	COM xSEG Option	UART/IRDA	Timer	ADC	DAC	Tone Output	Battery Detect	FSK Decoder	DTMFTransceiver	Built-in DC-DC	SDRAM Interface
2.2~3.6	28	764K	8K	40	SPLC501 I/F	SPLC501 I/F	‧/‧	2	‧	‧	‧	‧	‧	‧	-	-

General Description

The GPTC6608A, a new micro-controller for caller ID, vocal dialer, and SMS products, carries SUNPLUS newest 16-bit μ'nSP^TM CPU technology. The μ'nSP^TM 1.1 high processing speed assures that the GPTC6608A is able to facilitate the sophisticated digital signal processing. In addition to the advanced μ'nSP^TM 1.1 technology, other primary functions include RAM, ROM, I/O, interrupt controller, two timer/counters, built-in LCM interface, serial flash/SRAM interface, UART/IrDA interface, 10-bit Analog-to-Digital Converter (ADC), Dual-Tone-Multi-Frequency (DTMF) generator, and 10-bit Digital-to-Analog Converter (DAC) output. For power savings, a software controllable standby mode and adjustable CPU clock are able to achieve the best power management.
An external 32768Hz crystal oscillator produces a steady time base for clock function. With the built-in DTMF generator, the telephone dialer function can be implemented.
The GPTC6608A can be widely used in telecom products such as multifunction telephone dialer with/without Caller Identification and general-purpose controller. The GPTC6608A provides, not only the latest telecom technology, but also the full service and support of GENERALPLUS.

Features

SUNPLUS 16-bit μ'nSP™ 1.1 CPU
- SRAM 4K x 16 bits (internal), 24K x 16 bits (external)
- ROM 382K x 16 bits (internal), 2012K x 16 bits (external)
Clock (max. CPUCK=28MHz)
- An external 32768Hz crystal for dialing and demodulation
- Built-in RC-oscillator and XTAL oscillator for CPU clock
- /1,/2,/4,/8 of RC-oscillator clock output for CPU
- /1,/2,/4,/8,/16,/32,/64 of XTAL oscillator clock output for CPU
Operating voltage
- CPU operating voltage : 2.2V – 3.6V
- AFE operating voltage : 2.2V – 3.6V
Operation Modes
- Operating mode, Standby mode, and Halt mode
Timer/Counter
- Two 16-bit timers/counters
Power management for system reliability
- Low-Voltage-Reset function
- Power-On-Reset function
- 8-level battery voltage detect
- Watchdog reset (derived from 32768Hz crystal)
12 Interrupt / Wakeup Sources (INT / WP)
- IOA[7:0]/IOE[7:0], IOC[1:0] edge-triggered
- Ring Detect / Line Signal Detector
- UART / IrDA Ready
- Timer A / Timer B overflow
- T32KHz,T2KHz,T128Hz,T8Hz (derived from 32768Hz)
LCD Driver
- built-in SPLC501 LCM interface
- SPLC501 : 65 COMs x 132 SEGs
up to 40 I/Os max.
- IOA[5:0]/IOE[5:0]:programmable pull-high, wakeup / INT
- IOA[7:6]/IOE[7:6]:programmable pull-high/low, wakeup / INT
- IOB[5:0]:COMS output, IOB[7:6] NMOS open drain
- IOC[4:0]:COMS output, IOC[7:5], NMOS open drain
- IOD[7:0] : CMOS I/O
- IOD[1] : CMOS I/O, can be programmed as TONE output
Analog Front End
- Op amp for the twisted pair telephone line
- 5-stage programmable PGA
- 10-bit A/D, with sample-rate up to 16KHz, 4 input channels
- Built-in microphone amplifier and AGC
DTMF / FSK demodulation and CAS tone detection
- Object code of DTMF and FSK decoders provided
- Compatible with Bell 202, and ITU V.23 FSK specifications
- FSK/DTMF decoder auto-select function
- Digitized algorithm for CAS tone detection
Miscellaneous
- Built-in DTMF generator
- Ring / Line Signal Detector
- 2 DAC output pins for DTMF output and melody / speech
- Multiplication with cumulative addition for user's digital filters
- Built-in UART and IrDA interface