Specifications

M80 Hardware Design
M80_HD_V1.0 - 28 -
converter.
PCM
PIN NAME
PIN
NO.
I/O
DESCRIPTION
DC
CHARACTERISTICS
COMMENT
PCM_CLK
19
O
PCM clock
VILmin=-0.3V
VILmax=
0.25*VDD_EXT
VIHmin=
0.75*VDD_EXT
VIHmax=
VDD_EXT+0.3
VOHmin=
0.85*VDD_EXT
VOLmax=
0.15*VDD_EXT
Not supported at
present.
PCM_IN
18
I
PCM data input
PCM_OUT
20
O
PCM data output
PCM_
SYNC
21
O
PCM frame
synchronization
USB interface
PIN NAME
PIN
NO.
I/O
DESCRIPTION
DC
CHARACTERISTICS
COMMENT
USB_DM
USB_DP
22，
23
I/O
Differential data
Comply with USB 1.1
specification
SD card
PIN NAME
PIN
NO.
I/O
DESCRIPTION
DC
CHARACTERISTICS
COMMENT
SD_CMD
34
O
SD command
VILmin=-0.3V
VILmax=
0.25*VDD_EXT
VIHmin=
0.75*VDD_EXT
VIHmax=
VDD_EXT+0.3
VOHmin=
0.85*VDD_EXT
VOLmax=
0.15*VDD_EXT
Not supported at
present.
SD_CLK
35
O
SD clock
SD_DATA0
36
I/O
SD data
Camera interface
PIN NAME
PIN
NO.
I/O
DESCRIPTION
DC
CHARACTERISTICS
COMMENT
CS_D0
78
I
Camera parallel data
VILmin=-0.3V
VILmax=
0.25*VDD_EXT
VIHmin=
0.75*VDD_EXT
VIHmax=
Not supported at
present.
CS_D1
84
I
CS_D2
96
I
CS_D3
77
I
CS_D4
80
I
CS_D5
82
I
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