参数资料
型号: MSC8126TVT6400
厂商: Freescale Semiconductor
文件页数: 27/48页
文件大小: 0K
描述: IC DSP QUAD 16B 400MHZ 431FCPBGA
标准包装: 60
系列: StarCore
类型: SC140 内核
接口: DSI,以太网,RS-232
时钟速率: 400MHz
非易失内存: 外部
芯片上RAM: 1.436MB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 431-BFBGA,FCBGA
供应商设备封装: 431-FCPBGA(20x20)
包装: 托盘
配用: MSC8126ADSE-ND - KIT ADVANCED DEV SYSTEM 8126
Electrical Characteristics
2.5.5.3
DMA Data Transfers
Table 17 describes the DMA signal timing.
Table 17. DMA Signals
No.
Characteristic
Ref = CLKIN
Min
Max
Ref = CLKOUT
(1.2 V only)
Min
Max
Units
37
38
39
40
41
DREQ set-up time before the 50% level of the falling edge of REFCLK
DREQ hold time after the 50% level of the falling edge of REFCLK
DONE set-up time before the 50% level of the rising edge of REFCLK
DONE hold time after the 50% level of the rising edge of REFCLK
DACK/DRACK/DONE delay after the 50% level of the REFCLK rising edge
5.0
0.5
5.0
0.5
0.5
7.5
5.0
0.5
5.0
0.5
0.5
8.4
ns
ns
ns
ns
ns
The DREQ signal is synchronized with REFCLK . To achieve fast response, a synchronized peripheral should assert DREQ
according to the timings in Table 17 . Figure 13 shows synchronous peripheral interaction.
REFCLK
38
37
DREQ
40
39
DONE
41
DACK/DONE/DRACK
Figure 13. DMA Signals
MSC8126 Quad Digital Signal Processor Data Sheet, Rev. 15
Freescale Semiconductor
27
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