HT36B2
8-Bit Music Synthesizer MCU
Features
·
Operating voltage: 3.6V~5.0V
·
Operating frequency: 3.58MHz~12MHz
·
Independent pan and volume mix can be assigned to
each sound component
·
Sampling rate of 44.1kHz as 11.059MHz for system
(Typ. 11.059MHz)
·
32 bidirectional I/O lines
·
Two 16-bit programmable timer/event counters with
frequency
·
Eight-level subroutine nesting
·
HALT function and wake-up feature reduce power
overflow interrupts
·
Watchdog Timer
·
Built-in 8-bit MCU with 576´8 bits RAM
·
Built-in 128K´16-bit ROM for program/data shared
·
Two High D/A converter resolution: 16 bits
·
Polyphonic up to 16 notes
consumption
·
Bit manipulation instructions
·
16-bit table read instructions
·
63 powerful instructions
·
All instructions in 1 or 2 machine cycles
·
28-pin SOP, 56-pin SSOP package
General Description
The HT36B2 is an 8-bit high performance RISC archi-
tecture microcontroller specifically designed for various
music applications. It provides an 8-bit MCU and a 16
channel wavetable synthesizer. The program ROM
which can be easily programmed is composed of both
program control codes and wavetable voice codes.
The HT36B2 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.
Block Diagram
P A
P B
P C
P D
0 ~
0 ~
0 ~
0 ~
P A
P B
P C
P D
IN
O S C
O S C
T
R E S
7
7
7
7
1 2 8 K
´
1 6 - b it
R O M
8 - B it
M C U
5 7 6
´
8
R A M
M u ltip lie r /P h a s e
G e n e ra l
V D
V S
V D
V S
S te re o
1 6 - B it
D A C
D
D A
S A
S
1
2
R C H
L C H
Rev. 1.10
1
March 10, 2005
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
