W536A031 Datasheet, PDF (5/16 Pages) Winbond – VOICE/MELODY/LCD CONTROLLER

W536A031
3. BLOCK DIAGRAM
SEG0~63 COM0~15 V3,V4,V5,V6 V2 DH1,DH2
RAM
1.4K*4Bit
ROM
32K*20Bit
PC
STACK
(8 Levels)
Timer 0
Watch Dog
LCD DRIVER
ACC
ALU
Special Register
IEF
HCF
HEF
SPC
PEF
MLD
FLAG1
LPX0
LPX4
PM0 MR0
LPX1 LPX2
LPX5 LPY0
EVF
FLAG0
PSR0
LPX3
LPY1
VLCD PUMP &
REGULATOR
TONE
PORT RA
PORT RB
PORT RC
PORT RD
SPC_busy
SPC_play
LPXY
Shared_ROM Data
Speech
MDPCM
core
Timer 1
Divide
Interrupt ,Hold & Stop
Control
Timing
Generator
MLD_busy
MLD_play
Voice ROM
(1M bits)
Dual
Tone
melody
(1K notes)
XIN XOUT X32I X32O
VDD
VSS
RA0~3
RB0~3
RC0~3
RD0~3
ROSC
PWM/DAC
Mix
Block
VSSP
PWM1/DAC
PWM2
VDDP
TEST
RES
Publication Release Date: May 20, 2003
-5-
Revision A2