JVC TH-A75R Service Manual page 55

Pin No. Symbol I/O
50~52 MD20 - MD22 I/O SDRAM data bus
53 Vddio
54~56 MD23 - MD25 I/O SDRAM data bus
57 Vssio
58~61 MD26 - MD29 I/O SDRAM data bus
62 Vddio
63,64 MD30,MD31 I/O SDRAM data bus
65 DQM3
66 CS1-
67 Vsso
68 SPDIF
69 Vssio
70 AIN
71 AOUT3
72 AOUT2
73 AOUT1
74 AOUT0
75 Vddio
76 PCMCLK
77 Vdd
78 ACLK
79 LRCLK
80 SRST
81 RSTP
82 Vssio
83 RXD1
84 SSPIN1 I/O SSP1 data in or 16X clock for USART function in UART1; can be used as GPIO
85 Vss
86 SSPOUT1 I/O SSP1 data out or UART1 data-terminal-ready signal; can be used as GPIO
87 SSPCLK1 I/O SSP1 clock or UART1 clear-to-send signal; can be used as GPIO
88 SSPCLK0 I/O SSP0 clock or request-to-send function in UART1; can be used as GPIO
89 Vdd
90 SSPIN0 I/O SSP0 data in or 16X clock for USART function in UART0; can be used as GPIO
91 Vddio
92 SSPOUT0 I/O SSP0 data out or UART0 data-terminal-ready signal; can be used as GPIO
93 TXD0 I/O UART0 serial data output to an external serial device; can be used as GPIO
94 RXD0
95 CTS0- I/O UART0 clear-to-send signal; can be used as GPIO
96 RTS0- I/O UART0 request-to-send signal; can be used as GPIO
97 Vssio
98 CXI
99 CXO
100 OSCVss
101 OSCVdd
102 MVCKVdd
- Power supply (3.3V)
- Ground
- Power supply (3.3V)
O SDRAM data byte enable
- Not connect. (SDRAM extension bank chip select)
- Ground
O S/PDIF digital audio output
- Ground
I Digital audio input for digital micro; can be used as GPIO
O Serial audio output data to audio DAC for left and right channels for down-mixed stereo; can be
used as GPIO
O Serial audio output data to audio DAC for surround left and right channels; can be used as GPIO
O Serial audio output data to audio DAC for center and LFE channels; can be used as GPIO
O Serial audio output data to audio DAC for left and right channels; can be used as GPIO
- Power supply (3.3V)
- Not connect. (Audio DAC PCM sampling clock frequency, common clock for DACs and ADC; can
be used as GPIO)
- Power supply (1.8V)
O Audio interface serial data clock, common clock for DACs and analog-to digital converter (ADC)
O Left/Right channel clock, common clock for DACs and ADC
O Active low RESET signal for peripheral reset
I RESET_Power from system, used to reset frequency synthesizer and rest of chip
- Ground
I UART1 serial data input from external serial device, used for IR receive; can be used as GPIO
- Ground
- Power supply (1.8V)
- Power supply (3.3V)
I UART0 serial data input from external serial device; can be used as GPIO
- Ground
I Crystal input pin for on-chip oscillator or system input clock
- Not connect. (Crystal output pin for on-chip oscillator)
- Oscillator ground
- Oscillator power supply (1.8V)
- Main and video clock PLL power supply (3.3V)
Function
TH-A75R
(No.21189)1-55