参数资料
型号: ADSP-BF518BSWZ-4
厂商: Analog Devices Inc
文件页数: 31/68页
文件大小: 0K
描述: IC DSP 16/32B 400MHZ LP 176LQFP
标准包装: 1
系列: Blackfin®
类型: 定点
接口: 以太网,I²C,PPI,RSI,SPI,SPORT,UART/USART
时钟速率: 400MHz
非易失内存: 外部
芯片上RAM: 116kB
电压 - 输入/输出: 1.8V,2.5V,3.3V
电压 - 核心: 1.30V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 176-LQFP 裸露焊盘
供应商设备封装: 176-LQFP-EP(24x24)
包装: 托盘
ADSP-BF512/BF512F, BF514/BF514F, BF516/BF516F, BF518/BF518F
Rev. B
|
Page 37 of 68
|
January 2011
Serial Ports
through Figure 24 on Page 40 describe serial port operations.
Table 33. Serial Ports—External Clock
VDDEXT
1.8V Nominal
VDDEXT
2.5 V/3.3V Nominal
Parameter
Min
Max
Min
Max
Unit
Timing Requirements
tSFSE
1
TFSx/RFSx Setup Before TSCLKx/RSCLKx
3
ns
tHFSE
TFSx/RFSx Hold After TSCLKx/RSCLKx
3
ns
tSDRE
Receive Data Setup Before RSCLKx
3
ns
tHDRE
Receive Data Hold After RSCLKx
3.5
3
ns
tSCLKEW
TSCLKx/RSCLKx Width
7
4.5
ns
tSCLKE
TSCLKx/RSCLKx Period
2 × tSCLK
ns
tSUDTE
2
Start-Up Delay From SPORT Enable To First External TFSx
4 × tSCLKE
ns
tSUDRE
Start-Up Delay From SPORT Enable To First External RFSx
4 × tSCLKE
ns
Switching Characteristics
tDFSE
3
TFSx/RFSx Delay After TSCLKx/RSCLKx (Internally Generated
TFSx/RFSx)
10
ns
tHOFSE
TFSx/RFSx Hold After TSCLKx/RSCLKx (Internally Generated
TFSx/RFSx)
00ns
tDDTE
Transmit Data Delay After TSCLKx
10
ns
tHDTE
Transmit Data Hold After TSCLKx
0
ns
1 Referenced to sample edge.
2 Verified in design but untested.
3 Referenced to drive edge.
Table 34. Serial Ports—Internal Clock
VDDEXT
1.8V Nominal
VDDEXT
2.5 V/3.3V Nominal
Parameter
Min
Max
Min
Max
Unit
Timing Requirements
tSFSI
1
TFSx/RFSx Setup Before TSCLKx/RSCLKx
11
9.6
ns
tHFSI
TFSx/RFSx Hold After TSCLKx/RSCLKx
–1.5
ns
tSDRI
Receive Data Setup Before RSCLKx
11
9.6
ns
tHDRI
Receive Data Hold After RSCLKx
–1.5
ns
Switching Characteristics
tDFSI
2
TFSx/RFSx Delay After TSCLKx/RSCLKx (Internally Generated
TFSx/RFSx)
33
ns
tHOFSI
TFSx/RFSx Hold After TSCLKx/RSCLKx (Internally Generated
TFSx/RFSx)
2
1ns
tDDTI
Transmit Data Delay After TSCLKx
3
ns
tHDTI
Transmit Data Hold After TSCLKx
1.8
1.5
ns
tSCLKIW
TSCLKx/RSCLKx Width
10
8
ns
1 Referenced to sample edge.
2 Referenced to drive edge.
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