HT36B0 Datasheet, PDF (1/13 Pages) Holtek Semiconductor Inc – 8-Bit Music Synthesizer MCU

HT36B0
8-Bit Music Synthesizer MCU
Features
· Operating voltage: 3.6V~5.0V
· Operating frequency: 3.58MHz~12MHz,
RC typ. 11.059MHz
· 36 bidirectional I/O lines
· Two 16-bit programmable timer/event counters with
overflow interrupts
· Watchdog Timer
· Built-in 8-bit MCU with 768´8 bits RAM
· Built-in 256K´16-bit ROM for program/data shared
· Digital output pins for external DAC
· Single data format with 16 bits digital stereo audio
output
· MIDI interface available
· Two High D/A converter resolution: 16 bits
General Description
The HT36B0 is an 8-bit high performance RISC-like
microcontroller specifically designed for music applica-
tions. It provides an 8-bit MCU and a 16 channel
wavetable synthesizer. The program ROM is composed
of both program control codes and wavetable voice
codes, and can be easily programmed.
Block Diagram
· Polyphonic up to 16 notes
· Independent pan and volume mix can be assigned to
each sound component
· Sampling rate of 44.1kHz as 11.059MHz for system
frequency
· Eight-level subroutine nesting
· HALT function and wake-up feature to reduce power
consumption
· Bit manipulation instructions
· 16-bit table read instructions
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· UART input/output 31.25kbps
· 28-pin SOP, 64-pin QFP package
The HT36B0 has a built-in 8-bit microprocessor which
programs the synthesizer to generate the melody by
setting the special register from 20H~2AH. A HALT fea-
ture is provided to reduce power consumption.
P A 0~P A 7
P B 0~P B 7
P C 0~P C 7
P D 0~P D 7
P E 0~P E 3
IN T
O SC1
O SC2
M ID I_ IN
M ID I_ O U T
M ID I_ T H R U
RES
2 5 6 K ´ 1 6 - b it
ROM
8 - B it
768´8
M CU
RAM
M u ltip lie r /P h a s e
G e n e ra l
VDD
VDDA
VSS
VSSA
S te re o
RCH
1 6 - B it
DAC
LC H
Rev. 1.00
1
June 30, 2003