
14
4109LS–8051–02/08
AT8xC51SND1C
Figure 5-4.
AT8xC51SND1C Typical Application with IDE CD-ROM Drive
Ref.
B
a
tt
e
ry
IDE CD-ROM
D
O
U
T
D
C
L
K
D
S
E
L
S
C
L
K
P
3
.4
P
3
.5
A
IN
0
MCLK
X1
X2
V
S
A
V
S
V
R
E
F
P
V
R
E
F
N
V
D
A
V
D
A
IN
1
MDAT
MCMD
MMC1
MMC2
Audio DAC
R
S
T
P
4
.2
P1.0/KIN0
P0.0
P0.1
P1.1/KIN1
P1.2/KIN2
P0.2
P0.3
P
4
.4
P
4
.5
P
4
.6
P
4
.7
LCD
P
1
.7
/S
D
A
P
1
.6
/S
C
L
FILT
PVSS
AT8xC51SND1C
P
3
.6
/W
R
#
P
3
.7
/R
D
#
P
2
P
0
P
4
.0
P
4
.1
USB PORT
D+
D-
UVDD
UVSS