OMAP-L137
www.ti.com
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
Table 6-65. General Timing Requirements for SPI1 Slave Modes
(1)
(continued)
No.
PARAMATER
MIN
MAX
UNIT
Polarity = 0, Phase = 0,
2P
to SPI1_CLK rising
Polarity = 0, Phase = 1,
2P
Setup time, transmit data written to
to SPI1_CLK rising
12
t
su(SOMI_SPC)S
SPI before initial clock edge from
ns
Polarity = 1, Phase = 0,
master.
(2) (3)
2P
to SPI1_CLK falling
Polarity = 1, Phase = 1,
2P
to SPI1_CLK falling
Polarity = 0, Phase = 0,
19
from SPI1_CLK rising
Polarity = 0, Phase = 1,
19
Delay, subsequent bits valid on
from SPI1_CLK falling
13
t
d(SPC_SOMI)S
SPI1_SOMI after transmit edge of
ns
Polarity = 1, Phase = 0,
SPI1_CLK
19
from SPI1_CLK falling
Polarity = 1, Phase = 1,
19
from SPI1_CLK rising
Polarity = 0, Phase = 0,
0.5t
c(SPC)S
-3
from SPI1_CLK falling
Polarity = 0, Phase = 1,
0.5t
c(SPC)S
-3
Output hold time, SPI1_SOMI valid
from SPI1_CLK rising
14
t
oh(SPC_SOMI)S
after
ns
Polarity = 1, Phase = 0,
receive edge of SPI1_CLK
0.5t
c(SPC)S
-3
from SPI1_CLK rising
Polarity = 1, Phase = 1,
0.5t
c(SPC)S
-3
from SPI1_CLK falling
Polarity = 0, Phase = 0,
0
to SPI1_CLK falling
Polarity = 0, Phase = 1,
0
Input Setup Time, SPI1_SIMO valid
to SPI1_CLK rising
15
t
su(SIMO_SPC)S
before
ns
Polarity = 1, Phase = 0,
receive edge of SPI1_CLK
0
to SPI1_CLK rising
Polarity = 1, Phase = 1,
0
to SPI1_CLK falling
Polarity = 0, Phase = 0,
5
from SPI1_CLK falling
Polarity = 0, Phase = 1,
5
Input Hold Time, SPI1_SIMO valid
from SPI1_CLK rising
16
t
ih(SPC_SIMO)S
after
ns
Polarity = 1, Phase = 0,
receive edge of SPI1_CLK
5
from SPI1_CLK rising
Polarity = 1, Phase = 1,
5
from SPI1_CLK falling
(2)
First bit may be MSB or LSB depending upon SPI configuration. SO(0) refers to first bit and SO(n) refers to last bit output on
SPI1_SOMI. SI(0) refers to the first bit input and SI(n) refers to the last bit input on SPI1_SIMO.
(3)
Measured from the termination of the write of new data to the SPI module, In analyzing throughput requirements, additional internal bus
cycles must be accounted for to allow data to be written to the SPI module by the DSP CPU.
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Peripheral Information and Electrical Specifications
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