參數(shù)資料
型號(hào): TMS320C15-25
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processors(160ns指令周期,分離的程序和數(shù)據(jù)總線,外部輪詢中斷的DSP)
中文描述: 數(shù)字信號(hào)處理器(160ns指令周期,分離的程序和數(shù)據(jù)總線,外部輪詢中斷的數(shù)字信號(hào)處理器)
文件頁數(shù): 92/139頁
文件大小: 1478K
代理商: TMS320C15-25
TMS320C16
DIGITAL SIGNAL PROCESSORS
SPRS009C–JANUARY 1987–REVISED JULY 1991
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
92
t
conf
(data bus conflict time) = t
ddeco
+ t
dmemh
– t
d9(MEN)
with:
t
ddeco
t
dmemh
: memory data hold time from CE or OE
t
d9
: delay time, MEN to data bus starts being driven
t
d9
: (at 35 MHz CLKIN) = [1/4t
c(C)
] = [1/4(114.3)] = 28.58 ns
If t
conf
is less than or equal to zero, data bus conflict does not occur.
If t
conf
is greater than zero, data conflict occurs.
Note that the following discussion is for CLKIN of 35 MHz.
: decode delay time to make the CE or OE signal
static memory with output enable and write enable/chip select
The following SRAMs are able to interface directly to the
C16, needing only to directly connect the
C16 memory
control signals MEN and MWE to the memory. Device select decode is accomplished with address decode and
then input to the device chip select.
PRODUCT
t
ddeco
0
0
0
0
0
t
dmemh
15
15
8
10
10
t
dconf
–13.58
–13.58
–20.58
–18.58
–18.58
UNITS
ns
ns
ns
ns
ns
TC55645-35
TC55328-35
TMS6789-35
TC5588-35
TMS6716-35
ALS138
(Decoder)
WE
OE
CS
ADDR
DATA
MWE
MEN
A15-AXX
D15-D0
TMS320C16
SRAM With OE
Figure 14.
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