SPDS106A

` 8-bit RISC microprocessor (CPU) with 256K bytes ROM for program and audio data.
` CPU with 128 working RAM
` 23 general I/Os
` 7 interrupt sources
` Key change wake up
`2Hz, 1sec, 2sec, 10sec, 30sec, 1min, 2min or 4min programmable RTC wake up and interrupt.
` Shared D/A converter supports three PWM modes:
     --10-bit Push-Pull mode
     --10-bit Single-pin double-ended mode
     --9-bit single-pin single-ended mode
`Single clock: Crystal OSC or ROSC 20MHz to DSP and 20MHz divided by N to CPU, where N = 2, 4, 6, 8, 10, 12, 14
` Volume control function
` Serial interface I/O
` CPU with two 12-bit timers/counters
` Low voltage reset
` Sleep mode for power saving
` Multi-phase for remote control application
`Max. CPU clock: 5.0MHz @ 2.4V - 5.5V
` SACM_S480, SACM_S720, SACM_S240, SACM_A2400/A3200 and FM synthesizer

Long Duration Audio System
Intelligent Talking Toys
Talking Instructions
Kid-Story Books
And relevant applications

SPDS106A, a single chip contains an 8-bit RISC microprocessor (CPU) and a 16-bit digital signal processor (DSP), is applied for constituting long duration audio applications. The CPU transmits commands and data to DSP by the means of memory-mapped (parallel interface). The SPDS106A employs 23 general I/Os to access external devices. The 256K x 8 ROM hold the system control program, audio processing program and audio data. The DSP receives the commands and data from CPU and finally runs the decompressing algorithm. Both CPU and DSP share a PWM output for audio.