描述 Description

SOUND CONTROLLER WITH 256KB ROMThe GPC11256C, a speech/wavetable synthesizer, equips an 8-bit CMOS microprocessor, and 256K-byte Working ROM, 128-byte working SRAM. Other primary features include two 8-bit Timer/Counters and can cascade to one 16-bit timer/counter, 24 Software Selectable I/Os, One 8-bit DAC and a pair of PWM output. It operates at a wide voltage range of 2.2V - 5.5V. Plus, a Clock Stop mode is built in for power savings. The unique power saving mode saves the RAM contents, but freezes the oscillator to stop executing other functions. The maximum CPU frequency can run up to 8MHz and the instruction cycle is two clock cycles (min.) ~ six clock cycles (max.). The GPC11256C loads, not only the latest technology, but also the full commitment and technical support of Generalplus.

特性 Features

? 8-bit microprocessor
? 256K bytes ROM
? 128-byte working SRAM
? Software-based audio processing
? Wide operating voltage:
? 2.2V* - 5.5V @ 6.0MHz
? 3.6V - 5.5V @ 8.0MHz*under the minimum operating voltage, the system clock would slow down very quickly.

? Supports ROSC only
? Standby mode (Clock Stop mode) for power savings.Max. 2.0μA @ 5.0V
? 24 general I/Os (include 4 high brightness LED driving I/O)
? Low Voltage Reset (LVR) function
? Two 8-bit timer/counters and can cascade to one 16-bit timer/counter
? Six INT sources
? Key wake -up function
? IR function
? External feedback input
? Watch dog function
? One DAC and A pair of PWM output