DocID025743 Rev 3
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STM32F031x4 STM32F031x6
Electrical characteristics
86
Figure 29. I2S slave timing diagram (Philips protocol)
1.
Measurement points are done at CMOS levels: 0.3 × V
DDIOx
and 0.7 × V
DDIOx
.
2.
LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first
byte.
t
su(SD_MR)
Data input setup time
Master receiver
6
-
ns
t
su(SD_SR)
Data input setup time
Slave receiver
2
-
t
h(SD_MR)
(2)
Data input hold time
Master receiver
4
-
t
h(SD_SR)
(2)
Slave receiver
0.5
-
t
v(SD_ST)
(2)
Data output valid time
Slave transmitter (after enable edge)
Slave transmitter (after enable edge)
Master transmitter (after enable edge)
Master transmitter (after enable edge)
-
20
t
h(SD_ST)
Data output hold time
13
-
t
v(SD_MT)
(2)
Data output valid time
-
4
t
h(SD_MT)
Data output hold time
0
-
1.
Data based on design simulation and/or characterization results, not tested in production.
2.
Depends on f
PCLK
. For example, if f
PCLK
= 8 MHz, then T
PCLK
= 1/f
PLCLK
= 125 ns.
Table 60. I
2
S characteristics
(1)
(continued)
Symbol
Parameter
Conditions
Min
Max
Unit
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&32/
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6'WUDQVPLW
6'UHFHLYH
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WZ&./
WVX:6
WY6'B67
WK6'B67
WK:6
WVX6'B65
WK6'B65
06%UHFHLYH
%LWQUHFHLYH
/6%UHFHLYH
06%WUDQVPLW
%LWQWUDQVPLW
/6%WUDQVPLW
DLE
/6%UHFHLYH
/6%WUDQVPLW
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021-31660491