Datasheet

Table Of Contents
TMS320DM6467T
www.ti.com
SPRS605C JULY 2009REVISED JUNE 2012
Table 7-118. Additional Input Timing Requirements of 5-Pin Option in Master Mode
(1)
-1G
NO. UNIT
MIN MAX MIN MAX
Delay time, max delay for slave
SPI to drive SPI_ENA valid after
21 t
d(CSL-ENA)
master asserts SPI_CS[n] to 0.5P 0.5D ns
delay the master from beginning
the next transfer
Delay time, max delay for slave
to deassert SPI_ENA after final
0.5T 0.5T
SPI_CLK falling edge, 5-pin
mode, polarity = 0, phase = 0
Delay time, max delay for slave
to deassert SPI_ENA after final
0 0
SPI_CLK falling edge, 5-pin
mode, polarity = 0, phase = 1
31 t
d(CLK-ENA)
(2) (3)
ns
Delay time, max delay for slave
to deassert SPI_ENA after final
0.5T 0.5T
SPI_CLK rising edge, 5-pin
mode, polarity = 1, phase = 0
Delay time, max delay for slave
to deassert SPI_ENA after final
0 0
SPI_CLK rising edge, 5-pin
mode, polarity = 1, phase = 1
(1) T = period of SPI_CLK; P = period of SPI core clock; D = period of 24-MHz clock
(2) SPI master is ready with new data before SPI_ENA deassertion.
(3) Figure 7-86 shows only polarity = 0, phase = 0 as an example.
Slave Mode — Additional
Table 7-119. Additional Output Switching Characteristics of 4-Pin Enable Option in Slave Mode
(1)
-1G
NO. PARAMETER UNIT
MIN MAX
Delay time, final SPI_CLK falling edge to
slave deasserting SPI_EN, polarity = 0, P – 6 3P + 15
phase = 0
Delay time, final SPI_CLK falling edge to
slave deasserting SPI_EN, polarity = 0, 0.5T + P – 6 0.5T + 3P + 15
phase = 1
SPI24 t
d(CLK-EN)
(2)
ns
Delay time, final SPI_CLK rising edge to slave
deasserting SPI_EN, polarity = 1, P – 6 3P + 15
phase = 0
Delay time, final SPI_CLK rising edge to slave
deasserting SPI_EN, polarity = 1, 0.5T + P – 6 0.5T + 3P + 15
phase = 1
(1) T = period of SPI_CLK; P = period of SPI core clock
(2) Figure 7-87 shows only polarity = 0, phase = 0 as an example.
Table 7-120. Additional Output Switching Characteristics of 4-Pin Chip-Select Option in Slave Mode
(1)
-1G
NO. PARAMETER UNIT
MIN MAX
Delay time, master asserting SPI_CS[n] to slave driving SPI_SOMI
27 t
d(CSL-SOMI)
P + 6 ns
data valid
Disable time, master deasserting SPI_CS[n] to slave driving
28 t
dis(CSH-SOMI)
P + 6 ns
SPI_SOMI high impedance
(1) T = period of SPI_CLK; P = period of SPI core clock
Copyright © 2009–2012, Texas Instruments Incorporated Peripheral Information and Electrical Specifications 319
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