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SPRS653E – FEBRUARY 2010 – REVISED MARCH 2014
Table 6-74. Additional(1) SPI1 Master Timings, 4-Pin Enable Option(2)(3)
1.3V, 1.2V
1.1V
1.0V
NO.
PARAMETER
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
Polarity = 0, Phase = 0,
3P+5
3P+6
to SPI1_CLK rising
Delay from slave
Polarity = 0, Phase = 1,
0.5M+3P+5
0.5M+3P+6
assertion of
to SPI1_CLK rising
17
td(EN A_SPC)M
SPI1_ENA active to
ns
Polarity = 1, Phase = 0,
first SPI1_CLK from
3P+5
3P+6
to SPI1_CLK falling
master.(4)
Polarity = 1, Phase = 1,
0.5M+3P+5
0.5M+3P+6
to SPI1_CLK falling
Polarity = 0, Phase = 0,
0.5M+P+5
0.5M+P+6
from SPI1_CLK falling
Max delay for slave to
Polarity = 0, Phase = 1,
deassert SPI1_ENA
P+5
P+6
from SPI1_CLK falling
after final SPI1_CLK
18
td(SPC_ENA)M
ns
edge to ensure
Polarity = 1, Phase = 0,
0.5M+P+5
0.5M+P+6
master does not begin from SPI1_CLK rising
the next transfer.(5)
Polarity = 1, Phase = 1,
P+5
P+6
from SPI1_CLK rising
(1)
These parameters are in addition to the general timings for SPI master modes
(Table 6-72).(2)
P = SYSCLK2 period; M = tc(SPC)M (SPI master bit clock period)
(3)
Figure shows only Polarity = 0, Phase = 0 as an example. Table gives parameters for all four master clocking modes.
(4)
In the case where the master SPI is ready with new data before SPI1_ENA assertion.
(5)
In the case where the master SPI is ready with new data before SPI1_ENA deassertion.
Table 6-75. Additional(1) SPI1 Master Timings, 4-Pin Chip Select Option(2) (3)
1.3V, 1.2V
1.1V
1.0V
NO.
PARAMETER
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
Polarity = 0, Phase = 0,
2P-1
2P-5
2P-6
to SPI1_CLK rising
Polarity = 0, Phase = 1,
Delay from
0.5M+2P-1
0.5M+2P-5
0.5M+2P-6
to SPI1_CLK rising
SPI1_SCS active
19
td(SCS_SPC)M
ns
to first
Polarity = 1, Phase = 0,
2P-1
2P-5
2P-6
SPI1_CLK(4) (5)
to SPI1_CLK falling
Polarity = 1, Phase = 1,
0.5M+2P-1
0.5M+2P-5
0.5M+2P-6
to SPI1_CLK falling
Polarity = 0, Phase = 0,
0.5M+P-1
0.5M+P-5
0.5M+P-6
from SPI1_CLK falling
Delay from final
Polarity = 0, Phase = 1,
P-1
P-5
P-6
SPI1_CLK edge to from SPI1_CLK falling
20
td(SPC_SCS)M
master
ns
Polarity = 1, Phase = 0,
deasserting
0.5M+P-1
0.5M+P-5
0.5M+P-6
from SPI1_CLK rising
SPI1_SCS (6) (7)
Polarity = 1, Phase = 1,
P-1
P-5
P-6
from SPI1_CLK rising
(1)
These parameters are in addition to the general timings for SPI master modes
(Table 6-72).(2)
P = SYSCLK2 period; M = tc(SPC)M (SPI master bit clock period)
(3)
Figure shows only Polarity = 0, Phase = 0 as an example. Table gives parameters for all four master clocking modes.
(4)
In the case where the master SPI is ready with new data before SPI1_SCS assertion.
(5)
This delay can be increased under software control by the register bit field SPIDELAY.C2TDELAY[4:0].
(6)
Except for modes when SPIDAT1.CSHOLD is enabled and there is additional data to transmit. In this case, SPI1_SCS will remain
asserted.
(7)
This delay can be increased under software control by the register bit field SPIDELAY.T2CDELAY[4:0].
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Peripheral Information and Electrical Specifications
163