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參數(shù)資料
型號: DSPB56366AG120
廠商: Freescale Semiconductor
文件頁數(shù): 20/110頁
文件大?。?/td> 0K
描述: IC DSP 24BIT AUD 120MHZ 144-LQFP
產(chǎn)品變化通告: Product Discontinuation 24/Feb/2012
標準包裝: 60
系列: DSP56K/Symphony
類型: 音頻處理器
接口: 主機接口,I²C,SAI,SPI
時鐘速率: 120MHz
非易失內(nèi)存: ROM(240 kB)
芯片上RAM: 69kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 3.30V
工作溫度: -40°C ~ 110°C
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應(yīng)商設(shè)備封裝: 144-LQFP(20x20)
包裝: 托盤
DSP56366 Technical Data, Rev. 3.1
Freescale Semiconductor
2-13
HA0
Input
I2C Slave Address 0—This signal uses a Schmitt-trigger input when configured for
the I2C mode. When configured for I2C slave mode, the HA0 signal is used to form
the slave device address. HA0 is ignored when configured for the I2C master mode.
This signal is tri-stated during hardware, software, and individual reset. Thus, there
is no need for an external pull-up in this state.
This input is 5 V tolerant.
SS
Input
Tri-stated
SPI Slave Select—This signal is an active low Schmitt-trigger input when
configured for the SPI mode. When configured for the SPI Slave mode, this signal
is used to enable the SPI slave for transfer. When configured for the SPI master
mode, this signal should be kept deasserted (pulled high). If it is asserted while
configured as SPI master, a bus error condition is flagged. If SS is deasserted, the
SHI ignores SCK clocks and keeps the MISO output signal in the high-impedance
state.
HA2
Input
I2C Slave Address 2—This signal uses a Schmitt-trigger input when configured for
the I2C mode. When configured for the I2C Slave mode, the HA2 signal is used to
form the slave device address. HA2 is ignored in the I2C master mode.
This signal is tri-stated during hardware, software, and individual reset. Thus, there
is no need for an external pull-up in this state.
This input is 5 V tolerant.
HREQ
Input or
Output
Tri-stated
Host Request—This signal is an active low Schmitt-trigger input when configured
for the master mode but an active low output when configured for the slave mode.
When configured for the slave mode, HREQ is asserted to indicate that the SHI is
ready for the next data word transfer and deasserted at the first clock pulse of the
new data word transfer. When configured for the master mode, HREQ is an input.
When asserted by the external slave device, it will trigger the start of the data word
transfer by the master. After finishing the data word transfer, the master will await
the next assertion of HREQ to proceed to the next transfer.
This signal is tri-stated during hardware, software, personal reset, or when the
HREQ1–HREQ0 bits in the HCSR are cleared. There is no need for external pull-up
in this state.
This input is 5 V tolerant.
Table 2-10 Serial Host Interface Signals (continued)
Signal
Name
Signal Type
State during
Reset
Signal Description
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