ST75951 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST75951' PDF : 21 Pages View PDF
FUNCTIONAL DESCRIPTION (continued)
Figure 6
fQ = 36.864MHz
18.432MHz
9.216MHz
P
R
O
C
E
S
S
O
R
Figure 7
8
XTALIN
2 SCLK
3 FS
46 DIN
47 DOUT
M/S 14
MCM 4
TS 44
fS = fQ / (M x Q x Over)
VDD
VDD
GND
fQ = 36.864MHz
18.432MHz
9.216MHz
8
P
R
XTALIN
O
2 SCLK
C
E
3 FS
M/S 14
S
S
46 DIN
MCM 4
O
R
47 DOUT
TS 44
fS = fQ / (M x Q x Over)
Figure 8
STLC7546
fQ
Functional Mode
8
P
R
XTALIN
O
2 SCLK
C
E
3 FS
M/S 14
S
S
46 DIN
MCM 4
O
R
47 DOUT
TS 44
fS = fQ / Over
GND
VDD
GND
VDD
GND
GND
ST75951
Figure 9
P
R
O
C
E
S
S
O
R
Figure 10
P
R
O
C
E
S
S
O
R
fQ
8
XTALIN
2 SCLK
3 FS
46 DIN
47 DOUT
M/S 14
MCM 4
TS 44
fS = fQ / Over
GND
GND
GND
8 XTALIN
Master
Codec 1
2 SCLK M/S 14
3 FS
MCM 4
VDD
GND
46 DIN
TS 44
GND
47 DOUT
RESET
43
43
RESET
8 XTALIN
Slave
Codec 2
2 SCLK
3 FS
M/S 14
GND
46 DIN MCM 4
GND
47 DOUT TS 44
VDD
6 - General Purpose Input / Output
ST75951 features 4 GPIO. The GPIO0..3 are tradi-
tional inputs/outputs programmed and set thanks to
the control register 1 (mask, input/output) and control
register 2 (output value, static or modulated).
GPIO0 output is dedicated to output F0/N clocks
instead of a static ’1’ if bit 6 in control register 2 is
set. GPIO3 is dedicated to output F0 clock instead
of a static ’1’ if bit 10 in control register 2 is set (see
Figure 11 and 12).
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