W567BXXX
1. GENERAL DESCRIPTION
The W567Bxxx is a powerful microcontroller (uC) dedicated to speech and melody synthesis
applications. With the help of the embedded 8-bit microprocessor & dedicated H/W, the W567Bxxx
can synthesize 4-channel speech+melody simultaneously.
The two channels of synthesized speech can be in different kinds of format, for example ADPCM and
MDPCM. The W567Bxxx can provide 4-channel high-quality WinMelodyTM , which can emulate the
characteristics of musical instruments, such as piano and violin. The output of speech/melody
channels are mixed together through the on-chip digital mixer to produce colorful effects. With these
hardware resources, the W567Sxxx is very suitable for high-quality and sophisticated scenario
applications.
The W567Bxxx is also capable of transmitting infrared (IR) signals with on-chip carrier generator. As a
result, toys can be designed to interact with each other for more play values. A serial interface can be
supported as external memory for memory expansion or content-updateable applications.
The W567Bxxx family contains several items with different playback duration as shown below: (@5-bit
MDPCM algorithm, 6KHz sampling rate)
Item
W567B010
W567B015 W567B020 W567B030
W567B040
*Duration
14 sec.
18 sec.
26 sec.
35 sec.
52 sec.
Item
W567B060
W567B080 W567B100 W567B120
W567B150
Duration
60 sec.
104 sec.
116 sec.
129 sec.
163 sec.
Item
W567B170
W567B210 W567B260
Duration
197 sec.
232 sec.
264 sec.
Note:
*: The duration time is based on 5-bit MDPCM at 6KHz sampling rate. The firmware library and timber library have
been excluded from user’s ROM space for the duration estimation.
Publication Release Date: May 2009
- 2 - Revision A10
