LG HT353SD Manual De Servicio página 45

1. IC501 MPEG(MT1389L)
• DESCRIPCIÓN DE PINS
Pin Name
V SS 1, V SS 2
V SS 3
V DD 1, V DD 2
V DD 3
Port 0
P00 to P07
Port 1
P10 to P17
Port 2
P20 to P27
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I/O
- - Power supply pin
- + Power supply pin
I/O • 8-bit I/O port
• I/O specifiable in 4-bit units
• Pull-up resistor can be turned on and off in 4-bit units
• HOLD release input
• Port 0 interrupt input
• Shared Pins
P05 : Clock output (system clock / can selected from sub clock)
P06 : Timer 6 toggle output
P07 : Timer 7 toggle output
I/O • 8-bit I/O port
• I/O specifiable in 1-bit units
• Pull-up resistor can be turned on and off in 1-bit units
• Pin functions
P10 : SIO0 data output
P11 : SIO0 data input/bus I/O
P12 : SIO0 clock I/O
P13 : SIO1 data output
P14 : SIO1 data input/bus I/O
P15 : SIO1 clock I/O
P16 : Timer 1 PWML output
P17 : Timer 1 PWMH output/beeper output
I/O • 8-bit I/O port
• I/O specifiable in 1-bit units
• Pull-up resistor can be turned on and off in 1-bit units
• Other functions
P20: INT4 input/HOLD reset input/timer 1 event input/timer 0L capture input/
timer 0H capture input/INT6 input/timer 0L capture 1 input
P21 to P23 : INT4 input/HOLD reset input/timer 1 event input/timer 0L capture input/
timer 0H capture input
P24: INT5 input/HOLD reset input/timer 1 event input/timer 0L capture input/
timer 0H capture input/INT7 input/timer 0H capture 1 input
P25 to P27: INT5 input/HOLD reset input/timer 1 event input/timer 0L capture input/
timer 0H capture input
• Interrupt acknowledge type
Rising
INT4 enable
INT5 enable
INT6 enable
INT7 enable
Description
Rising/
Falling H level
Falling
enable enable disable
enable enable disable
enable enable disable
enable enable disable
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Option
No
No
Yes
Yes
Yes
L level
disable
disable
disable
disable