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MX-GA77
1-30
3. Pin function (1/2)
-
-
-
I/O
I/O
I/O
I/O
I/O
O
O
I/O
I/O
Pin name
Power supply (-)
Power supply (+)
Test pin
Set as VSS with the user’s option. (see Note 1)
• 8bit input/output port
• Data direction programmable in nibble units
• Use of pull-up resistor can be specified in nibble units
• Input for HOLD release
• Input for port 0 interrupt
• 15V withstand at N-channel open drain output
• 8bit input/output port
• Data direction programmable for each bit
• Use of pull-up resistor can be specified for each bit
• Other pin functions
P10: SIO0 data output
P11: SIO0 data input / bus input / output
P12: SIO0 clock input / output
P13: SIO1 data output
P14: SIO1 data input / bus input / output
P15: SIO1 clock input / output
P16: Timer 1 PWML output
P17: Timer 1 PWMH output / Buzzer output
• 8bit input/output port
• Data direction can be specified for each bit
• Use of pull-up resistor can be specified for each bit
• 15V withstand at N-channel open drain output
• Other functions:
P30 to P33: INT4 input / HOLD release input / Timer 1 event input / Timer 0L
capture input / Timer 0H capture input
P34 to P37: INT5 input / HOLD release input / Timer 1 event input / Timer 0L
capture input / Timer 0H capture input
• 4bit input/output port
• Data direction can be specified for each bit
• Use of pull-up resistor can be specified for each bit
• Other functions
P70: INT0 input / HOLD release input / Timer0L capture input / Output for watchdog timer
P71: INT1 input / HOLD release input / Timer0H capture input
P72: INT2 input / HOLD release input / Timer 0 event input / Timer0L capture input
/ High speed clock counter input
P73: INT3 input(noise rejection filter attached input) / Timer 0 event input
/ Timer 0H capture input
AD input port: AN8(P70), AN9(P71), AN12(P72), AN13(P73)
• 8bit input/output port
• Input/output can be specified in a bit unit
• Other functions:
AD input port: AN0 to AN7
Weak signal detector input port: MICIN(P87)
• Large current output for VFD display controller digit (can be used for segment)
• Large current output for VFD display controller segment/digit
• Output for VFD display controller segment/digit
• Other functions:
High voltage input port: PC0 to PC7
• Output for VFD display controller segment
• Other functions:
High voltage input port: PD0 to PD7
Function
I/O
VSS1, 2
VDD1,2,3,4
FIX0
PORT0
P00 to P07
PORT1
P10 to P17
PORT3
P30 to P37
PORT7
P70 to P73
PORT8
P80 to P87
S0/T0 to
S8/T8
S9/T9 to
S15/T15
S16 to S23
S24 to S31
Содержание MX-GA77
Страница 25: ...1 25 MX GA77 Troubleshooting 1 Amplifier Power malfunction No output ...
Страница 26: ...MX GA77 1 26 2 Tuner malfunction FM AM 3 Tape ...
Страница 27: ...1 27 MX GA77 4 CD ...
Страница 28: ...MX GA77 1 28 5 CD MP3 parts ...
Страница 43: ...1 43 MX GA77 M E M O ...
Страница 50: ...MX GA77 2 4 A B C D 1 2 3 4 5 To CW101 Sheet 1 5 MX GA77 fornt FL display System control section UCW03 UCW05 ...
Страница 51: ...2 5 MA GA77 E F G SHEET 2 5 To CW105 Sheet 4 5 UCW04 UCW02 ...
Страница 52: ...MX GA77 2 6 A B C D 1 2 3 4 5 Amp section To CW106 Sheet 1 5 To CW105 Sheet 1 5 MX GA77 JUS amp ...
Страница 54: ...MX GA77 2 8 A B C D 1 2 3 4 5 CD section To Switc To CW2 Sensor board ...
Страница 55: ...2 9 MA GA77 E F G SHEET 4 5 CD signal To CW104 SHEET 1 5 To UCW04 SHEET 2 5 To CW3 Switch board ...
Страница 56: ...MX GA77 2 10 A B C D 1 2 3 4 5 Tuner section To CW103 SHEET 1 5 ...
Страница 57: ...2 11 MA GA77 E F G FM TUNER signal AM signal SHEET 5 5 ...
Страница 58: ...MX GA77 2 12 A B C D 1 2 3 4 5 Main board M Printed circuit boards ...
Страница 59: ...2 13 MA GA77 E F G Main board ...
Страница 60: ...MX GA77 2 14 A B C D 1 2 3 4 5 CD switch boa Front board Front board ...
Страница 61: ...2 15 MA GA77 E F G h board oard ...
Страница 62: ...MX GA77 2 16 A B C D 1 2 3 4 5 Amp board ...
Страница 63: ...2 17 MA GA77 E F G ...
Страница 64: ...MX GA77 2 18 A B C D 1 2 3 4 5 CD servo board ...
Страница 65: ...2 19 MA GA77 E F G Fuse board Trans board Power supply board ...
Страница 87: ...MX GA77 3 21 M E M O ...