Sanyo DC-DA2000 - Page 12

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IC BLOCK DIAGRAM & DESCRIPTION
Interrrupt control
Standby control
CF
RC
X'tal
Clock
generator
IR
PLA
ROM
PC
ACC
Base timer
Bus interface
B resister
C resister
Port 1
Port 7
Port 8
Port 3
ADC
ALU
PSW
RAR
RAM
SIO0
SIO1
Timer 0
Timer 1
Real time
service
ROM 128 byte
LCD display
controller
S0 to S7 (PA)
S8 to S13 (PB)
S16 to S23 (PC)
S24 to S31 (PD)
S32 to S39 (PE)
S40 to S47 (PF)
COM0 to COM(PL)
INT0 to3
Noise rejection
filter
Stack pointer
Port 0
Watch dog timer
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CCB
INTERFACE
CONTROL
CIRCUIT
15
14
16
17
18
19
20
21 22 24 25 2623
10 9 7 6 58
11
L4
L3
L2
L1
NC
NC
R1
R2
R3
R4
RSELO RIN RTRE RBASS1 RBASS2 ROUT
LSELO LIN LTRE LBASS1 LBASS2 LOUT
TEST
V
SS
CE
DI
CL
V
DD
Vref
NC
12
13
1
2
30
29
28
27
4
3
LVref
RVref
IC441 LC75342M (Erectric Volume / 2 band equalizer)
IC601 LC867232A-51D2 (Micro Processor)