參數(shù)資料
型號: TMS320LF2407APGEA
廠商: TEXAS INSTRUMENTS INC
元件分類: 數(shù)字信號處理
英文描述: 16-BIT, 20 MHz, OTHER DSP, PQFP144
封裝: GREEN, PLASTIC, LQFP-144
文件頁數(shù): 126/134頁
文件大?。?/td> 1724K
代理商: TMS320LF2407APGEA
TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A
TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A
DSP CONTROLLERS
SPRS145L JULY 2000 REVISED SEPTEMBER 2007
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
91
SPI
MASTER
MODE
TIMING
P
ARAMETERS
SPI
master
mode
timing
information
is
listed
in
the
following
tables.
SPI
master
mode
external
timing
parameters
(clock
phase
=
0)
(see
Figure
42)
NO.
SPI
WHEN
(SPIBRR
+
1)
IS
EVEN
OR
SPIBRR
=
0
OR
2
SPI
WHEN
(SPIBRR
+
1)
IS
ODD
AND
SPIBRR
>
3
UNIT
NO.
MIN
MAX
MIN
MAX
UNIT
1
t c(SPC)M
Cycle
time,
SPICLK
4t
c(CO)
128t
c(CO)
5t
c(CO)
127t
c(CO)
ns
2
§
t w(SPCH)M
Pulse
duration,
SPICLK
high
(clock
polarity
=
0)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
0.5t
c(SPC)M
0.5t
c(CO)
1
0
0.5t
c(SPC)M
0.5t
c(CO)
ns
2
§
t w(SPCL)M
Pulse
duration,
SPICLK
low
(clock
polarity
=
1)
0.5t
c(SPC)M
1
0
0.5t
c(SPC)M
0.5t
c(SPC)M
0.5t
c(CO)
1
0
0.5t
c(SPC)M
0.5t
c(CO)
ns
3
§
t w(SPCL)M
Pulse
duration,
SPICLK
low
(clock
polarity
=
0)
0.5t
c(SPC)M
1
0
0.5t
c(SPC)M
0.5t
c(SPC)M
+
0.5t
c(
C
O
)10
0.5t
c(SPC)M
+
0.5t
c(CO)
ns
3
§
t w(SPCH)M
Pulse
duration,
SPICLK
high
(clock
polarity
=
1)
0.5t
c(SPC)M
1
0
0.5t
c(SPC)M
0.5t
c(SPC)M
+
0.5t
c(
C
O
)1
0
0.5t
c(SPC)M
+
0.5t
c(CO)
ns
4
§
t d(SPCH-SIMO)M
Delay
time,
SPICLK
high
to
SPISIMO
valid
(clock
polarity
=
0)
10
10
ns
4
§
t d(SPCL-SIMO)M
Delay
time,
SPICLK
low
to
SPISIMO
valid
(clock
polarity
=
1)
10
10
ns
5
§
t v(SPCL-SIMO)M
V
alid
time,
SPISIMO
data
valid
after
SPICLK
low
(clock
polarity
=0)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
+
0.5t
c(CO)
10
ns
5
§
t v(SPCH-SIMO)M
V
alid
time,
SPISIMO
data
valid
after
SPICLK
high
(clock
polarity
=1)
0.5t
c(SPC)M
10
0.5t
c(SPC)M
+
0.5t
c(CO)
10
ns
8
§
t su(SOMI-SPCL)M
Setup
time,
SPISOMI
before
SPICLK
low
(clock
polarity
=
0)
0
ns
8
§
t su(SOMI-SPCH)M
Setup
time,
SPISOMI
before
SPICLK
high
(clock
polarity
=
1)
0
ns
9
§
t v(SPCL-SOMI)M
V
alid
time,
SPISOMI
data
valid
after
SPICLK
low
(clock
polarity
=
0)
0.25t
c(SPC)M
10
0.5t
c(SPC)M
0.5t
c(CO)
1
0
ns
9
§
t v(SPCH-SOMI)M
V
alid
time,
SPISOMI
data
valid
after
SPICLK
high
(clock
polarity
=
1)
0.25t
c(SPC)M
1
0
0.5t
c(SPC)M
0.5t
c(
C
O
)1
0
ns
The
MASTER
/SLA
VE
bit
(SPICTL.2)
is
set
and
the
CLOCK
PHASE
bit
(SPICTL.3)
is
cleared.
t c
=
system
clock
cycle
time
=
1/CLKOUT
=
t
c(CO)
§
The
active
edge
of
the
SPICLK
signal
referenced
is
controlled
by
the
CLOCK
POLARITY
bit
(SPICCR.6).
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