OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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Table 6-61. Additional
(1)
SPI0 Slave Timings, 4-Pin Enable Option
(2) (3)
No.
PARAMATER
MIN
MAX
UNIT
Polarity = 0, Phase = 0,
1.5 P -3
2.5 P + 18.5
from SPI0_CLK falling
Polarity = 0, Phase = 1,
Delay from final
– 0.5t
c(SPC)M
+ 1.5 P -3
– 0.5t
c(SPC)M
+ 2.5 P + 18.5
from SPI0_CLK falling
SPI0_CLK edge to
24
t
d(SPC_ENAH)S
ns
slave deasserting
Polarity = 1, Phase = 0,
1.5 P -3
2.5 P + 18.5
SPI0_ENA.
from SPI0_CLK rising
Polarity = 1, Phase = 1,
– 0.5t
c(SPC)M
+ 1.5 P -3
– 0.5t
c(SPC)M
+ 2.5 P + 18.5
from SPI0_CLK rising
(1)
These parameters are in addition to the general timings for SPI slave modes (
Table 6-57
).
(2)
P = SYSCLK2 period
(3)
Figure shows only Polarity = 0, Phase = 0 as an example. Table gives parameters for all four slave clocking modes.
Table 6-62. Additional
(1)
SPI0 Slave Timings, 4-Pin Chip Select Option
(2) (3)
No.
PARAMATER
MIN
MAX
UNIT
Required delay from SPI0_SCS asserted at slave to first
25
t
d(SCSL_SPC)S
2P
ns
SPI0_CLK edge at slave.
Polarity = 0, Phase = 0,
0.5t
c(SPC)M
+ P+5
from SPI0_CLK falling
Polarity = 0, Phase = 1,
P+5
Required delay from final
from SPI0_CLK falling
26
t
d(SPC_SCSH)S
SPI0_CLK edge before
ns
Polarity = 1, Phase = 0,
SPI0_SCS is deasserted.
0.5t
c(SPC)M
+ P+5
from SPI0_CLK rising
Polarity = 1, Phase = 1,
P+5
from SPI0_CLK rising
Delay from master asserting SPI0_SCS to slave driving
27
t
ena(SCSL_SOMI)S
P + 18.5
ns
SPI0_SOMI valid
Delay from master deasserting SPI0_SCS to slave 3-stating
28
t
dis(SCSH_SOMI)S
P + 18.5
ns
SPI0_SOMI
(1)
These parameters are in addition to the general timings for SPI slave modes (
Table 6-57
).
(2)
P = SYSCLK2 period
(3)
Figure shows only Polarity = 0, Phase = 0 as an example. Table gives parameters for all four slave clocking modes.
136
Peripheral Information and Electrical Specifications
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