DESCRIPTION
In internal system bus, the MCU (JUPITER) features efficient addressing register and memory timing control register to validate access the I/O registers, high speed working memory and program code. There are many speech processing firmware library for 4-bit ADPCM, 1-bit ADM, and so on; since the H616XP has built-in PSG, it also support high quality standard MIDI playing library and can play maximum 32-channel midi music. The each I/O of port 0 can be programmed to select interrupt source and the interrupt signal can be falling or rising trigger. As the MCU’s high performance and system clock speed is up to 45 MHz, the H616XP features the VCO and PLL clock system, and the system clock is programmable. Since the system clock is programmable, the H616XP can be more flexible for playing sound by configure the PSG’s function and system clock. There are two 8-bit timers, each timer is base on 8-bit up counter, 8-bit reload data, and base clock pre-scale. Usually, the timer can be configured to speech sample frequency.
