LC786821E Datasheet, PDF (11/35 Pages) ON Semiconductor – Compressed Audio Signal Processor IC

Pin
No.
Pin name
33 GP30
34 GP31
35 GP32
36 GP33
37 GP34
38 GP35
39 GP36
40 GP37
41 DVDD
42 DVSS
43 REG1EXTR
44 DVDD12_2
45 GP10
46 GP11
47 GP12
LC786821E
I/O
State when
"Reset"
Function
General purpose I/O port with pull down resistor
UART2 data transmit (exclusive with GP46)
External interruption function 3
I/O
Input(L)
(exclusive with GP13, GP31, GP43 and GP47)
LR clock input/output 2 for Audio interface
LR clock input 2 for Stream data interface
Data output of PCM for Bluetooth module communication
General purpose I/O port with pull down resistor
UART2 data receive (exclusive with GP47)
External interruption function 3
I/O
Input(L)
(exclusive with GP13, GP30, GP43 and GP47)
Bit clock input/output 2 for Audio interface
Bit clock input/output 2 for Stream data interface
LRCK input/output of PCM for Bluetooth module communication
General purpose I/O port with pull down resistor
Data 1 input/output for SD memory card
I/O
Input(L)
Data input/output 2 for Audio interface
Data input/output 2 for Stream data interface
BCK input/output of PCM for Bluetooth module communication
General purpose I/O port with pull down resistor
Data 0 input/output for SD memory card
I/O
Input(L)
Clock(Fs384) input/output 2 for Audio DAC
Request flag input/output 2 for Stream data interface
Data input of PCM for Bluetooth module communication
General purpose I/O port with pull down resistor
Clock output for SD memory card
I/O
Input(L)
Transmit data output for serial communication 3 (exclusive with GP50)
Block synchronization signal (SBSY) input for CD subcode
(exclusive with GP44)
General purpose I/O port with pull down resistor
Command input/output for SD memory card
I/O
Input(L)
Master clock output for serial communication 3 (exclusive with GP51)
Frame synchronization signal (SFSY) input for CD subcode
(exclusive with GP45)
General purpose I/O port with pull down resistor
I/O
Input(L)
Data 3 input/output for SD memory card
Receive data input for serial communication 3 (exclusive with GP52)
Data (PW) input for CD subcode (exclusive with GP46)
General purpose I/O port with pull down resistor
I/O
Input(L)
Data 2 input/output for SD memory card
Data transmit clock (SBCK) output for CD subcode (exclusive with GP47)


Digital system power supply


Digital system ground. This pin must be connected to the 0V level.
AO Unknown Reserved pin for internal regulator. This pin must be left open.
AO
H
Capacitor connection pin for internal regulator (1.2V for internal)
General purpose I/O port with pull down resistor
I/O
Input(L)
UART1 data transmit (exclusive with GP06)
IIC (master) clock output (exclusive with GP04 and GP40)
General purpose I/O port with pull down resistor
I/O
Input(L)
UART1 data receive (exclusive with GP07)
IIC (master) data input/output (exclusive with GP05 and GP41)
General purpose I/O port with pull down resistor
I/O
Input(L)
External interruption function 2 (exclusive with GP42 and GP46)
Clock control input 1
Watch Dog Timer state monitor output
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