參數(shù)資料
型號: TMS320VC5409PGE-100
元件分類: 數(shù)字信號處理
英文描述: 16-Bit Digital Signal Processor
中文描述: 16位數(shù)字信號處理器
文件頁數(shù): 72/78頁
文件大小: 1018K
代理商: TMS320VC5409PGE-100
TMS320VC5409
FIXED-POINT DIGITAL SIGNAL PROCESSOR
SPRS082C – APRIL 1999 – REVISED MARCH 2000
72
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
HPI16 timing
switching characteristics over recommended operating conditions
§
[H = 0.5t
c(CO)
]
(see Figure 42 and Figure 43)
PARAMETER
MIN
MAX
UNIT
ten(DSL-HD)
Enable time, Dx driven from DS low
6
19
ns
Case 1a: Memory accesses when
DMAC is active in 16-bit mode and
tw(DSH) < 18H
Case 1b: Memory accesses when
DMAC is active in 16-bit mode and
tw(DSH)
18H
Case 2a: Memory accesses when
DMAC is inactive and tw(DSH) < 10H
Case 2b: Memory accesses when
DMAC is inactive and tw(DSH)
10H
Case 3: Register accesses
18H+19 – tw(DSH)
td(DSL HDV1)
td(DSL-HDV1)
Delay time, DS low to Dx valid for an
HPI read
19
ns
10H+19 – tw(DSH)
19
19
th(DSH-HDV)R
tv(HYH-HDV)
td(DSH-HYL)
Hold time, Dx valid after DS rising edge, read§
1
8
ns
Valid time, Dx valid before HRDY rising edge
Delay time, DS or HCS high to HRDY low
0
6
ns
10
ns
td(DSH-HYH)
Delay time, DS high to HRDY high§
(writes and autoincrement reads)
Case 1: Memory access when DMAC
is active in 16-bit mode
18H+10
ns
Case 2: Memory access when DMAC
is inactive
10H+10
td(DSL-HYL)
td(COH–HYH)
NOTE: The HRDY output is always high when the HCS input is high, regardless of DS timings.
DS refers to the logical OR of HCS, HDS1, or HDS2.
Dx refers to any of the DPI data bus pins (D0, D1, D2, etc.).
§DMAC stands for direct memory access (DMA) controller. The HPI16 shares the internal DMA bus with the DMAC, thus HPI16 access times
are affected by DMAC activity.
GPIO refers to the HD pins when they are configured as general-purpose input/outputs.
Delay time, HDS or HCS low/high to HRDY low/high
10
ns
Delay time, CLKOUT high to HRDY high
2
ns
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相關代理商/技術參數(shù)
參數(shù)描述
TMS320VC5409PGE100 制造商:Texas Instruments 功能描述:Digital Signal Processor IC
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