參數(shù)資料
型號(hào)： TMS320F28335_1
廠商： Texas Instruments, Inc.
英文描述： Variable Capacitance Diode for TV Tuner VHF Tuning; Ratings VR (V): 32; Characteristics n: 12.0 min; Characteristics rs (ohm) max: 0.85; Characteristics C (pF) max: C2 = 32.2 to 37.5 C25 = 2.57 to 3.0; Characteristics CVR/CVR: 2/25; Cl: 2.777; Package: UFP
中文描述： 數(shù)字信號(hào)控制器（DSC）
文件頁數(shù)： 144/166頁
文件大?。?/td> 1889K
代理商： TMS320F28335_1
www.ti.com
A
t
su(XD)XRD
t
a(XRD)
Lead
Active
Trail
DIN
t
d(XCOH-XZCSL)
t
d(XCOH-XA)
t
d(XCOHL-XRDL)
t
d(XCOHL-XZCSH)
t
d(XCOHL-XRDH)
WS (Async)
XCLKOUT = XTIMCLK
XCLKOUT = 1/2 XTIMCLK
XZCS0, XZCS6, XZCS7
XA[0:19]
XRD
XWE0, XWE1
(D)
XR/W
XD[0:31], XD[0:15]
XREADY(Asynch)
t
su(XRDYasynchL)XCOHL
t
e(XRDYasynchH)
t
a(A)
t
h(XRDYasynchL)
t
h(XD)XRD
t
h(XRDYasynchH)XZCSH
= Don’t care. Signal can be high or low during this time.
Legend:
(A) (B)
(C)
t
su(XRDYasynchH)XCOHL
(E)
(F)
TMS320F28335, TMS320F28334, TMS320F28332
Digital Signal Controllers (DSCs)
SPRS439B–JUNE 2007–REVISED OCTOBER 2007
A.
All XINTF accesses (lead period) begin on the rising edge of XCLKOUT. When necessary, the device will insert an
alignment cycle before an access to meet this requirement.
During alignment cycles, all signals will transition to their inactive state.
During inactive cycles, the XINTF address bus will always hold the last address put out on the bus. This includes
alignment cycles.
XWE1 is valid only in 32-bit data bus mode. In 16-bit mode, this signal is XA0.
For
each
sample,
setup
time
from
the
beginning
E = (XRDLEAD + XRDACTIVE -3 +n) t
c(XTIM)
– t
su(XRDYasynchL)XCOHL
where n is the sample number: n = 1, 2, 3, and
so forth.
Reference
for
the
first
sample
F = (XRDLEAD + XRDACTIVE –2) t
c(XTIM)
B.
C.
D.
E.
of
the
access
can
be
calculated
as:
F.
is
with
respect
to
this
point:
Figure 6-26. Example Read With Asynchronous XREADY Access
XTIMING register parameters used for this example:
XRDLEAD
≥
1
XRDACTIVE
XRDTRAIL
≥
1
USEREADY
X2TIMING
XWRLEAD
N/A
(1)
XWRACTIVE
N/A
(1)
XWRTRAIL
N/A
(1)
READYMODE
3
1
0
1 = XREADY
(Async)
(1)
N/A = “Don’t care” for this example
Electrical Specifications
144
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