参数资料
型号: TMS320VC5409GGU100
厂商: Texas Instruments
文件页数: 77/93页
文件大小: 0K
描述: IC DIG SIG PROCESSOR 144-BGA
标准包装: 160
系列: TMS320C54x
类型: 定点
接口: 主机接口,McBSP
时钟速率: 100MHz
非易失内存: ROM(32 kB)
芯片上RAM: 64kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.80V
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 144-LFBGA
供应商设备封装: 144-BGA MICROSTAR(12x12)
包装: 托盘
配用: 296-15829-ND - DSP STARTER KIT FOR TMS320C5416
其它名称: 296-10763
296-10763-5
296-10763-5-ND
Documentation Support
79
April 1999 Revised October 2008
SPRS082F
Table 532. HPI8 Mode Switching Characteristics§
PARAMETER
MIN
MAX
UNIT
ten(DSL-HD)
Enable time, HD driven from DS low
2
19
ns
Case 1a: Memory accesses when
DMAC is active in 16-bit mode and
tw(DSH) < 18H
18H+19 – tw(DSH)
Case 1b: Memory accesses when
DMAC is active in 16-bit mode and
tw(DSH) ≥ 18H
19
td(DSL-HDV1)
Delay time, DS low to HDx valid for
first byte of an HPI read
Case 1c: Memory access when
DMAC is active in 32-bit mode and
tw(DSH) < 26H
26H+19 – tw(DSH)
ns
td(DSL-HDV1)
Delay time, DS low to HDx valid for
first byte of an HPI read
Case 1d: Memory access when
DMAC is active in 32-bit mode and
tw(DSH) ≥ 26H
19
ns
Case 2a: Memory accesses when
DMAC is inactive and tw(DSH) < 10H
10H+19 – tw(DSH)
Case 2b: Memory accesses when
DMAC is inactive and tw(DSH) ≥ 10H
19
Case 3: Register accesses
19
td(DSL-HDV2)
Delay time, DS low to HDx valid for second byte of an HPI read
19
ns
th(DSH-HDV)R
Hold time, HDx valid after DS high, for a HPI read
3
5
ns
tv(HYH-HDV)
Valid time, HDx valid after HRDY high
5
td(DSH-HYL)
Delay time, DS high to HRDY low (see Note 1)
10
ns
Case 1a: Memory accesses when
DMAC is active in 16-bit mode
18H+10
ns
td(DSH-HYH)
Delay time, DS high to HRDY high
Case 1b: Memory accesses when
DMAC is active in 32-bit mode
26H+10
ns
td(DSH-HYH)
Delay time, DS high to HRDY high
Case 2: Memory accesses when
DMAC is inactive
10H+10
ns
Case 3: Write accesses to HPIC
register (see Note 2)
6H+10
ns
td(HCS-HRDY)
Delay time, HCS low/high to HRDY low/high
15
ns
td(COH-HYH)
Delay time, CLKOUT high to HRDY high
2
ns
td(COH-HTX)
Delay time, CLKOUT high to HINT change
5
ns
NOTES:
1. The HRDY output is always high when the HCS input is high, regardless of DS timings.
2. This timing applies when writing a one to the DSPINT bit or HINT bit of the HPIC register. All other writes to the HPIC occur
asynchronously, and do not cause HRDY to be deasserted.
DS refers to the logical OR of HCS, HDS1, and HDS2.
HDx refers to any of the HPI data bus pins (HD0, HD1, HD2, etc.).
§ DMAC stands for direct memory access (DMA) controller. The HPI8 shares the internal DMA bus with the DMAC, thus HPI8 access times are
affected by DMAC activity.
GPIO refers to the HD pins when they are configured as general-purpose input/outputs.
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