Texas Instruments AM1808 User Manual page 165

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NO.
Delay from assertion of SPI1_ENA
23 t
d(ENA_SPC)M
low to first SPI1_CLK edge.
(10) If SPI1_ENA was initially deasserted high and SPI1_CLK is delayed.
NO. PARAMETER
Delay from final SPI1_CLK edge to
24 t
d(SPC_ENAH)S
slave deasserting SPI1_ENA.
(1) These parameters are in addition to the general timings for SPI slave modes
(2) P = SYSCLK2 period; M = t (SPI master bit clock period)
c(SPC)M
(3) Figure shows only Polarity = 0, Phase = 0 as an example. Table gives parameters for all four slave clocking modes.
NO.
Required delay from SPI1_SCS asserted at slave to first SPI1_CLK edge at
25 t
d(SCSL_SPC)S
slave.
(1) These parameters are in addition to the general timings for SPI slave modes
(2) P = SYSCLK2 period; M = t (SPI master bit clock period)
c(SPC)M
(3) Figure shows only Polarity = 0, Phase = 0 as an example. Table gives parameters for all four slave clocking modes.
Copyright © 2010–2014, Texas Instruments Incorporated
(1)
Table 6-80. Additional SPI1 Master Timings, 5-Pin Option
PARAMETER
Polarity = 0, Phase = 0,
to SPI1_CLK rising
Polarity = 0, Phase = 1,
to SPI1_CLK rising
(10)
Polarity = 1, Phase = 0,
to SPI1_CLK falling
Polarity = 1, Phase = 1,
to SPI1_CLK falling
(1)
Table 6-81. Additional SPI1 Slave Timings, 4-Pin Enable Option
Polarity = 0, Phase = 0,
from SPI1_CLK falling
Polarity = 0, Phase = 1,
from SPI1_CLK falling
Polarity = 1, Phase = 0,
from SPI1_CLK rising
Polarity = 1, Phase = 1,
from SPI1_CLK rising
(Table
(1)
Table 6-82. Additional SPI1 Slave Timings, 4-Pin Chip Select Option
PARAMETER
(Table
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1.3V, 1.2V
MIN MAX
3P+5
0.5M+3P+5
3P+5
0.5M+3P+5
1.3V, 1.2V
MIN MAX MIN
1.5P-3 2.5P+15 1.5P-10
–0.5M+1.5P-3 –0.5M+2.5P+15 –0.5M+1.5P-10
1.5P-3 2.5P+15 1.5P-10
–0.5M+1.5P-3 –0.5M+2.5P+15 –0.5M+1.5P-10
6-77).
1.3V, 1.2V
MIN MAX
P+1.5
6-77).
AM1808
SPRS653E – FEBRUARY 2010 – REVISED MARCH 2014
(2)(3)
(continued)
1.1V
MIN MAX MIN
3P+5
0.5M+3P+5
3P+5
0.5M+3P+5
(2) (3)
1.1V
MAX MIN
2.5P+17 1.5P-12
–0.5M+2.5P+17 –0.5M+1.5P-12
2.5P+17 1.5P-12
–0.5M+2.5P+17 –0.5M+1.5P-12
(2) (3)
1.1V
MIN MAX MIN
P+1.5 P+1.5
Peripheral Information and Electrical Specifications
AM1808
1.0V
UNIT
MAX
3P+6
0.5M+3P+6
ns
3P+6
0.5M+3P+6
1.0V
UNIT
MAX
2.5P+19
–0.5M+2.5P+19
ns
2.5P+19
–0.5M+2.5P+19
1.0V
UNIT
MAX
ns
165