Datasheet

Table Of Contents
TMS320DM6467T
SPRS605C JULY 2009REVISED JUNE 2012
www.ti.com
Table 7-121. Additional Input Timing Requirements of 4-Pin Chip-Select Option in Slave Mode
(1)
-1G
NO. UNIT
MIN MAX
Setup time, SPI_CS[n] asserted at slave to first SPI_CLK edge
25 t
su(CSL-CLK)
2P + 6 ns
(rising or falling) at slave
Delay time, final falling edge SPI_CLK to SPI_CS[n] deasserted,
0.5T + P + 6
polarity = 0, phase = 0
Delay time, final falling edge SPI_CLK to SPI_CS[n] deasserted,
P + 6
polarity = 0, phase = 1
26 t
d(CLK-CSH)
(2)
ns
Delay time, final rising edge SPI_CLK to SPI_CS[n] deasserted,
0.5T + P + 6
polarity = 1, phase = 0
Delay time, final rising edge SPI_CLK to SPI_CS[n] deasserted,
P + 6
polarity = 1, 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 7-122. Additional Output Switching Characteristics of 5-Pin Option in Slave Mode
(1)
-1G
NO. PARAMETER UNIT
MIN MAX
Enable time, master asserting SPI_CS[n] to slave driving
SPI33 t
en(CSL-SOMI)
P + 6 ns
SPI_SOMI valid
Disable time, master deasserting SPI_CS[n] to slave driving
SPI34 t
dis(CSH-SOMI)
P + 6 ns
SPI_SOMI high impedance
SPI29 t
en(CSL-EN)
Enable time, master asserting SPI_CS[n] to slave driving SPI_EN 6 ns
Disable time, final clock receive falling edge of SPI_CLK to slave
drive SPI_EN high impedance, polarity = 0, phase = 0, 1.5P + 6
SPIINT0.ENABLE HIGHZ = 1
Disable time, final clock receive rising edge of SPI_CLK to slave
drive SPI_EN high impedance, polarity = 0, phase = 1, 1.5P + 6
SPIINT0.ENABLE HIGHZ = 1
SPI30 t
dis(CLK-ENZ)
(2)
ns
Disable time, final clock receive rising edge of SPI_CLK to slave
drive SPI_EN high impedance, polarity = 1, phase = 0, 1.5P + 6
SPIINT0.ENABLE HIGHZ = 1
Disable time, final clock receive falling edge of SPI_CLK to slave
drive SPI_EN high impedance, polarity = 1, phase = 1, 1.5P + 6
SPIINT0.ENABLE HIGHZ = 1
Disable time, SPI_CS[n] deassertion to slave drive SPI_EN high
impedance, polarity = 0, phase = 0, P + 6
SPIINT0.ENABLE HIGHZ = 1
Disable time, SPI_CS[n] deassertion to slave drive SPI_EN high
impedance, polarity = 0, phase = 1, P + 6
SPIINT0.ENABLE HIGHZ = 1
37 t
dis(CSH-ENH)
(2)
ns
Disable time, SPI_CS[n] deassertion to slave drive SPI_EN high
impedance, polarity = 1, phase = 0, P + 6
SPIINT0.ENABLE HIGHZ = 1
Disable time, SPI_CS[n] deassertion to slave drive SPI_EN high
impedance, polarity = 1, phase = 1, P + 6
SPIINT0.ENABLE HIGHZ = 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.
320 Peripheral Information and Electrical Specifications Copyright © 2009–2012, Texas Instruments Incorporated
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