21
NC
Not Used
22
VREFA
A
Voltage Reference for Audio Buffers
23
AI3L
A
Left SCART3 Audio Input
24
AI3R
A
Right SCART3 Audio Input
25
N/C
Not Used
26
BGAP
A
Bandgap Voltage Source Decoupling
27
N/C
Not Used
28
LSL
A
Left Loudspeaker Output
29
LSR
A
Right Loudspeaker Output
30
SW
A
Subwoofer Output
31
HPL
A
Left Headphone Output
32
HPR
A
Right Headphone Output
33
GNDSA
AP
Substrate Analog/Digital Shield
34
N/C
Not Used
35
HPD
B
Headphone Detection Input (Active Low)
36
ADR
I
Hardware I²C Chip Address Control
37
N/C
Not Used
38
N/C
Not Used
39
SCL
OD
I²C Serial Clock
40
SDA
OD
I²C Serial Data
41
N/C
Not Used
42
REG
A
5 V Power Regulator Control
43
RESET
I
Hardware Reset (Active Low)
44
SYSCK
B
System Clock Output
45
MCK
B
I²S Master Clock Output
46
VDD1
DP
3.3V Power Supply for Digital Core & IO Cells
47
GND1
DP
0V Power Supply for Digital Core & IO Cells
48
N/C
Not Used
49
GNDSP
AP
Substrate Analog/Digital Shield for Clock-PLL
50
N/C
Not Used
51
N/C
Not Used
52
XTI
I
Crystal Oscillator Input
53
XTO
O
Crystal Oscillator Output
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