Sanyo AVD-8501, Service Manual

Page: 44 / 110

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IC BLOCK DIAGRAM & DESCRIPTION
IC411 uPD780055G (8-Bit Single-chip Microcontroller)
Name
P00
P01-P05
P07
P10-P17
P20-P27
P30-P37
P40-P47
P50-P57
P60-P63
P64-P67
P70-P72
P120-P127
P130,P131
INTP0-INTP5
SI0-SI2
SO0-SO2
SB0,SB1
SCK0-SCK2
STB
BUSY
RxD0,RxD1
TxD0,TxD1
ASCK
TI00
TI01
TI1
TI2
TO0
TO1
TO2
PCL
BUZ
RTP0-RTP7
AD0-AD7
A8-A15
RD
WR
WAIT
ASTB
ANI0-ANI7
ANO0,ANO1
AV
REF0
AV
REF1
AV
SS
RESET
X1
X2
XT1
XT2
V
DD0
V
SS0
V
DD1
V
SS1
IC
Function
Port 0.
7 bits I/O port.
Port 1. 8 bits I/O port. Reserved I/O of 1 bit unit.
Input port:software make possible used internal pull up resistor.
Port 2. 8 bits I/O port.
Input port:software make possible used internal pull up resistor.
Port 3. 8 bits I/O port. Reserved I/O of 1 bit unit.
Input port:software make possible used internal pull up resistor.
Port 4. 8 bits I/O port. Reserved I/O of 8 bits unit.
Input port:software make possible used internal pull up resistor.
Set up 1 to test input flag (KRIF) by detected last edge.
Port 5. 8 bits I/O port. Possible direct drive to LED. Reserved I/O of 1 bit unit.
Input port:software make possible used internal pull up resistor.
Port 6.
8 bits I/O port.
Reserved I/O of 1 bit unit.
Port 7. 3 bits I/O port. Reserved I/O of 1 bit unit.
Input port:software make possible used internal pull up resistor.
Port 12. 8 bits I/O port. Reserved I/O of 1 bit unit.
Input port:software make possible used internal pull up resister.
Port 13. 2 bits I/O port. Reserved I/O of 1 bit unit.
Input port:software make possible used internal pull up resistor.
External interrupt requirements input make possible reserved effective edge.
Serial data input of serial interface.
Serial data output of serial interface.
Serial data I/O of serial interface.
Serial clock I/O of serial interface.
Steobe output for serial interface auto transmission/erceive.
Busy input for serial interface auto transmission/receive.
Serial data input for a synchronous serial interface.
Serial data output for a synchronous serial interface.
Serial clock input for a synchronous serial interface.
External count clock input to 16 bits timer (TM0).
Capture frigger signal input to dapture resistor (CR00).
External count clock to 8 bits timer (TM1).
External count clock to 8 bits timer (TM2).
16 bits timer (TM0) output (Use with 14 bits PWM output).
8 bits timer (TM1) output.
8 bits timer (TM2) output.
Clock output (Trimming for main system clock and sub-system clock).
Buzer output.
Real-time output port,data output synchronize trigger.
Low address/data bus for extend memory at external.
Low address bus for extend memory at external.
Strobe signal output for read operation of external memory.
Strobe signal output for write operation of external memory.
Wait insert when external memory access.
Strobe output:latched output address data of port 4 and port 5 for access external memory.
Analog input of A/D converter.
Analog output of A/D converter.
Voltage reference input A/D converter (Use with analog power source).
Voltage reference input D/A converter (Use with analog power source).
Ground potential of A/D and D/A converter. Use common potential to V
SS0
.
System reset input.
Crystal connect for main system clock oscillation.
Crystal connect for sub system clock oscillation.
+ Power source of port.
Ground potential of port.
+ Power source (Except port and analog port).
Ground potential (Except port and analog port).
Internal connected,connect directly to V
SS0
or V
SS1
.
I/O
I
I/O
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
O
I/O
I/O
O
I
I
O
I
I
O
O
O
O
I/O
O
O
I
O
I
O
I
I
-
I
I
-
I
-
-
-
-
-
-
Note 1
Note 2
Note 1. When use P07/XT1 pin as input:Bit 6 (FRC) of processor clock control resistor (PCC) set up 1.Not use internal feedback resistor of sub-system and clock oscillation circuit.
Note 2. When use P10/ANI0-P17/ANI7 pin as analog input of A/D converter:Set up port 1 input mode and automatically not used internal pull up resistor.
Input only.
Reserved I/O of 1 bit unit.
Input port:software makr possible used internal pull up resistor.
Inout only.
Nch open and drain I/O port.
Mask option make possible internal pull up resistor.
Possible direct to LED.
Input port:software make possible used internal pullup resistor.