Sanyo DCS-AVD8501 Service Manual page 44

IC BLOCK DIAGRAM & DESCRIPTION
IC411 uPD780055G (8-Bit Single-chip Microcontroller)
Name
P00
P01-P05
P07 Note 1
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
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.
I/O
I
Port 0.
I/O
7 bits I/O port.
I
Port 1. 8 bits I/O port. Reserved I/O of 1 bit unit.
I/O
Input port:software make possible used internal pull up resistor.
Port 2. 8 bits I/O port.
I/O
Input port:software make possible used internal pull up resistor.
Port 3. 8 bits I/O port. Reserved I/O of 1 bit unit.
I/O
Input port:software make possible used internal pull up resistor.
Port 4. 8 bits I/O port. Reserved I/O of 8 bits unit.
I/O 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.
I/O
Input port:software make possible used internal pull up resistor.
Port 6.
I/O 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.
I/O
Input port:software make possible used internal pull up resistor.
Port 12. 8 bits I/O port. Reserved I/O of 1 bit unit.
I/O
Input port:software make possible used internal pull up resister.
Port 13. 2 bits I/O port. Reserved I/O of 1 bit unit.
I/O
Input port:software make possible used internal pull up resistor.
I External interrupt requirements input make possible reserved effective edge.
I Serial data input of serial interface.
O Serial data output of serial interface.
I/O Serial data I/O of serial interface.
I/O Serial clock I/O of serial interface.
O Steobe output for serial interface auto transmission/erceive.
I Busy input for serial interface auto transmission/receive.
I Serial data input for a synchronous serial interface.
O Serial data output for a synchronous serial interface.
I 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).
I
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).
O 8 bits timer (TM1) output.
8 bits timer (TM2) output.
O Clock output (Trimming for main system clock and sub-system clock).
O Buzer output.
O Real-time output port,data output synchronize trigger.
I/O Low address/data bus for extend memory at external.
O Low address bus for extend memory at external.
Strobe signal output for read operation of external memory.
O
Strobe signal output for write operation of external memory.
I Wait insert when external memory access.
O Strobe output:latched output address data of port 4 and port 5 for access external memory.
I Analog input of A/D converter.
O Analog output of A/D converter.
I Voltage reference input A/D converter (Use with analog power source).
I 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
I System reset input.
I
Crystal connect for main system clock oscillation.
-
I
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
Function
Input only.
Reserved I/O of 1 bit unit.
Input port:software makr possible used internal pull up resistor.
Inout only.
Note 2
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.
or V .
SS0 SS1
- 59 -
.
SS0