參數(shù)資料
型號: ADSP-BF518BSWZ-4F4
廠商: Analog Devices Inc
文件頁數(shù): 37/68頁
文件大?。?/td> 0K
描述: IC DSP 16/32B 400MHZ LP 176LQFP
標準包裝: 1
系列: Blackfin®
類型: 定點
接口: 以太網(wǎng),I²C,PPI,RSI,SPI,SPORT,UART/USART
時鐘速率: 400MHz
非易失內(nèi)存: 閃存(4Mb)
芯片上RAM: 116kB
電壓 - 輸入/輸出: 1.8V,2.5V,3.3V
電壓 - 核心: 1.30V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 176-LQFP 裸露焊盤
供應商設(shè)備封裝: 176-LQFP-EP(24x24)
包裝: 托盤
Rev. B
|
Page 42 of 68
|
January 2011
ADSP-BF512/BF512F, BF514/BF514F, BF516/BF516F, BF518/BF518F
Serial Peripheral Interface (SPI) Port—Slave Timing
Table 38 and Figure 26 describe SPI port slave operations.
Universal Asynchronous Receiver-Transmitter
(UART) Ports—Receive and Transmit Timing
The UART ports receive and transmit operations are described
in the ADSP-BF51x Hardware Reference Manual.
Table 38. Serial Peripheral Interface (SPI) Port—Slave Timing
VDDEXT
1.8V Nominal
VDDEXT
2.5 V/3.3V Nominal
Parameter
Min
Max
Min
Max
Unit
Timing Requirements
tSPICHS
Serial Clock High Period
2 × tSCLK –1.5
ns
tSPICLS
Serial Clock Low Period
2 × tSCLK –1.5
ns
tSPICLK
Serial Clock Period
4 × tSCLK –1.5
ns
tHDS
Last SCK Edge to SPISS Not Asserted
2 × tSCLK –1.5
ns
tSPITDS
Sequential Transfer Delay
2 × tSCLK –1.5
ns
tSDSCI
SPISS Assertion to First SCK Edge
2 × tSCLK –1.5
ns
tSSPID
Data Input Valid to SCK Edge (Data Input Setup)
1.6
ns
tHSPID
SCK Sampling Edge to Data Input Invalid
2
1.6
ns
Switching Characteristics
tDSOE
SPISS Assertion to Data Out Active
0
12
0
10.3
ns
tDSDHI
SPISS Deassertion to Data High Impedance
0
11
0
9
ns
tDDSPID
SCK Edge to Data Out Valid (Data Out Delay)
10
ns
tHDSPID
SCK Edge to Data Out Invalid (Data Out Hold)
0
ns
Figure 26. Serial Peripheral Interface (SPI) Port—Slave Timing
tSPICLK
tHDS
tSPITDS
tSDSCI
tSPICLS
tSPICHS
tDSOE
tDDSPID
tDSDHI
tHDSPID
tSSPID
tDSDHI
tHDSPID
tDSOE
tHSPID
tSSPID
tDDSPID
SPIxSS
(INPUT)
SPIxSCK
(INPUT)
SPIxMISO
(OUTPUT)
SPIxMOSI
(INPUT)
SPIxMISO
(OUTPUT)
SPIxMOSI
(INPUT)
CPHA = 1
CPHA = 0
tHSPID
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