W562XXX Datasheet, PDF (5/8 Pages) Winbond – DUAL-TONE MELODY WITH VOICE SYNTHESIZER (BandDirector Series)

W562XXX
3. BLOCK DIAGRAM
P0 P1 P2 P3
I/O
Controller
RAM
Special Register
Timing
Generator
38KHz
carrier
ALU
Timer
OSC
ROM
Synthesizer II
*
Synthesizer I
Dual Tone
Melody Generator
Mixer
DAC
4. PAD DESCRIPTION
NAME
TEST
P0.0−P0.3
P1.0−P1.3
P2.0−P2.3
P3.0−P3.3
VSS
I/O
DESCRIPTION
I Test pin, internally pulled low
I Interruptable input pins, internally pulled high
I/O I/O multiplexed port1. Interruptable port if selected as input
I/O multiplexed port 2
I/O
P2.3 can be programmed as 38 KHz carrier output pin
O Output port 3
- Negative power supply
RESET
VDD
OSC
DAC
I Reset all, functions as POR (Power On Reset), internally pulled high
- Positive power supply
I Connect ROSC to VDD to generate 3 MHz oscillator
O
Current output of mixing of the channel 1 and channel 2 for driving an
external speaker
Publication Release Date: June 3, 2003
-5-
Revision A5