參數(shù)資料
型號： ADSP-BF592KCPZ
廠商： Analog Devices Inc
文件頁數(shù)： 17/44頁
文件大?。?/td> 0K
描述： IC DSP CTRLR 64LFCSP
視頻文件： Blackfin? BF592 Introduction
特色產(chǎn)品： Blackfin Embedded Processor
標(biāo)準(zhǔn)包裝： 1
系列： Blackfin®
類型： 定點(diǎn)
接口： I²C，I²S，IrDA，PPI，SPI，SPORT，UART
時鐘速率： 400MHz
非易失內(nèi)存： ROM（64 kB）
芯片上RAM： 64kB
電壓 - 輸入/輸出： 1.8V，2.5V，3.3V
電壓 - 核心： 1.29V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 64-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 64-LFCSP-VQ（9x9）
包裝： 托盤
Rev. B
|
Page 24 of 44
|
July 2013
Parallel Peripheral Interface Timing
Table 20 and Figure 9 through Figure 13 describe parallel
peripheral interface operations.
Table 20. Parallel Peripheral Interface Timing
Parameter
V
DDEXT = 1.8 V
V
DDEXT = 2.5 V/3.3 V
Min
Max
Min
Max
Unit
Timing Requirements
tPCLKW
PPI_CLK Width
1
tSCLK –1.5
ns
tPCLK
PPI_CLK Period
2 × tSCLK –1.5
ns
Timing Requirements—GP Input and Frame Capture Modes
tPSUD
External Frame Sync Startup Delay2
4 × tPCLK
ns
tSFSPE
External Frame Sync Setup Before PPI_CLK
(Nonsampling Edge for Rx, Sampling Edge for Tx)
6.7
ns
tHFSPE
External Frame Sync Hold After PPI_CLK
1.8
1.6
ns
tSDRPE
Receive Data Setup Before PPI_CLK
4.1
3.5
ns
tHDRPE
Receive Data Hold After PPI_CLK
2
1.6
ns
Switching Characteristics—GP Output and Frame Capture Modes
tDFSPE
Internal Frame Sync Delay After PPI_CLK
9.0
8.0
ns
tHOFSPE
Internal Frame Sync Hold After PPI_CLK
1.7
ns
tDDTPE
Transmit Data Delay After PPI_CLK
8.7
8.0
ns
tHDTPE
Transmit Data Hold After PPI_CLK
2.3
1.9
ns
1 PPI_CLK frequency cannot exceed fSCLK/2.
2 The PPI port is fully enabled 4 PPI clock cycles after the PAB write to the PPI port enable bit. Only after the PPI port is fully enabled are external frame syncs and data words
guaranteed to be received correctly by the PPI peripheral.
Figure 9. PPI with External Frame Sync Timing
Figure 10. PPI GP Rx Mode with External Frame Sync Timing
PPI_CLK
PPI_FS1/2
tPSUD
tPCLK
tSFSPE
DATA SAMPLED /
FRAME SYNC SAMPLED
DATA SAMPLED /
FRAME SYNC SAMPLED
PPI_DATA
PPI_CLK
PPI_FS1/2
tHFSPE
tHDRPE
tSDRPE
tPCLKW
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