SCG9910

www.DataSheet4U.com SCG9910 8-BIT MICROCONTROLLER SCG9910 Microcontroller Specification FEATURE SUMMARY Technology − CMOS technology. I/O ports − − 2 8-bit programmable I/O ports. 1 7-bit output port. CPU − − 8-bit CPU core. 128 powerful and easy-to-use instruction set. Timer − − − 2 8-bit pre-scalar auto reload timers which can be cascaded to form one 16-bit timer. 1 real time timer. 1 watch dog timer. Memory − − − Internal ROM: 48K x 8, 16K x 8 for program and data, 32K x 8 for data only. Internal RAM: 128 x 8 Memory is organized as 16K-byte page. Speech − − ADPCM technology for voice and sound effect. Total speech length depends on the data rate chosen: 11 sec for 32kbps data 12.5 sec for 28kbps data 14.6 sec for 24kbps data Direct drive of speaker. Dual channels supported. I/O Structure − Memory mapped I/O structure. − − Oscillation Frequency − − RC Oscillator for the main system clock up to 4MHz, instruction cycle ~0.5us. Subsystem clock frequency of 32.768kHz for real time timer. Operating Voltage − 2.4V to 5.5V. Power Down − Stop mode (Stop oscillation) Interrupts − − − − 2 timer interrupts. 1 real time interrupt. 1 external event interrupt. 1 software interrupt. Score Concept Semiconductor Ltd. 1 Sept 2000 SCG9910 8-BIT MICROCONTROLLER Function Overview Program Memory Map RAM Area: Address $00-$0F $10-$7F $80-$FF Description H/W registers and I/Os Reserved Data memory and Stack Figure 1. Memory map in RAM area ROM Area: Physical Address $0000-$3...