描述 Description

The GPLB39B, an 8-bit CMOS microprocessor, contains 8128 bytes working RAM, 2M bytes ROM, 21 I/Os, interrupt/wakeup controller, UART for serial communication, Serial SRAM interface and Bus memory interface for memory expansion, and automatic display controller/driver for LCD. It also features one PWM driver with two audio channels to produce attractive sound effects easily. Its large ROM area can be used to store both program and audio data. The built-in UART and SPI speeds up data transmission between two devices. Furthermore, a SLEEP (power-down) function is also built in to extend power life. The GPLB39B is designed with state-of-the-art technology to fulfill LCD application needs, especially for hand-held products.

特性 Features

? Built-in 8-bit processor
? 8128 bytes SRAM with individual Power Pad
? 2M bytes ROM
? Max. operating speed: 4.0MHz @ 2.4V - 3.6V 6.0MHz @ 3.6V - 5.5V
? CPU clock is software programmable, can be /1, /2, /4, /8, /16, /32, /64 R-oscillator clock frequency
? 6 wake-up sources
? 7 interrupt sources

? Asynchronous serial interface (UART)
? Serial SRAM interface
? Bus memory interface
? Serial peripheral interface (SPI)
? Built-in voltage regulator for external memory devices
? Key scan function
? SEG[15:0] can be used to send key scan output

? Programmable LCD driver
? 112x8, 112x16, 112x32, 112x48, 96x64 dots
? 1/4, 1/5, 1/6, 1/7, 1/8, 1/9 bias; 1/8, 1/16, 1/32, 1/48, 1/64 duty capability
? 14x64 bytes dedicated LCD RAM
? Built-in voltage regulator to generate VLCD for LCD driver
? 32-level contrast control

? Power saving SLEEP mode
? Low voltage detector
? 8-level 2.9V ~ 2.2V/4.35V ~ 3.3V detection
? 2.2V Low voltage reset

? Wide operating voltage range:
? 2.4V - 3.6V
? 3.6V - 5.5V

? Peripherals
? Max. 21 I/O pins (PA[7:0], PB[7:0], PC[4:0])
? Dedicated I/Os: PA[4:0]
? Shared pin I/Os: PA[7:5]/SPI SCK/SDI/SDO PB[7:0]/BMI AD Bus [7:0] PC[1:0]/BMI MC[1:0]/SSRAM SDA, SCK PC[3:2]/UART Rx/Tx PC[4]/external interrupt COM[48:63]/SEG[96:111]

? 32.768KHz oscillator circuit for RTC
? RC-oscillator (only one resistor is needed)
? Two 16-bit reloadable timer/counters
? 2-channel PWM audio outputs
? Watchdog Timer for reliable operation

? Low-power consumption:
? 1000μA typical @ 3.0V, FCPU = 1.0MHz, FOSC = 4.0MHz
? 80μA typical halt current @ 3.0V
? <1.0μA typical standby current @ 3.0V