參數(shù)資料
型號: MK30DX256ZVMD10
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PBGA144
封裝: 13 X 13 MM, MAPBGA-144
文件頁數(shù): 49/72頁
文件大?。?/td> 1013K
代理商: MK30DX256ZVMD10
6.8 Communication interfaces
6.8.1 CAN switching specifications
6.8.2 DSPI switching specifications (low-speed mode)
The DMA Serial Peripheral Interface (DSPI) provides a synchronous serial bus with
master and slave operations. Many of the transfer attributes are programmable. The tables
below provides DSPI timing characteristics for classic SPI timing modes. Refer to the
DSPI chapter of the Reference Manual for information on the modified transfer formats
used for communicating with slower peripheral devices.
Table 38. Master mode DSPI timing (low-speed mode)
Num
Description
Min.
Max.
Unit
Notes
Operating voltage
1.71
3.6
V
Frequency of operation
12.5
MHz
DS1
DSPI_SCK output cycle time
4 x tBUS
ns
DS2
DSPI_SCK output high/low time
(tSCK/2) - 4
(tSCK/2) + 4
ns
DS3
DSPI_PCSn valid to DSPI_SCK delay
(tBUS x 2)
4
ns
DS4
DSPI_SCK to DSPI_PCSn invalid delay
(tBUS x 2)
4
ns
DS5
DSPI_SCK to DSPI_SOUT valid
10
ns
DS6
DSPI_SCK to DSPI_SOUT invalid
-2
ns
DS7
DSPI_SIN to DSPI_SCK input setup
15
ns
DS8
DSPI_SCK to DSPI_SIN input hold
0
ns
1. The DSPI module can operate across the entire operating voltage for the processor, but to run across the full voltage
range the maximum frequency of operation is reduced.
2. The delay is programmable in SPIx_CTARn[PSSCK] and SPIx_CTARn[CSSCK].
3. The delay is programmable in SPIx_CTARn[PASC] and SPIx_CTARn[ASC].
Peripheral operating requirements and behaviors
K30 Sub-Family Data Sheet Data Sheet, Rev. 5, 5/2011.
Freescale Semiconductor, Inc.
Preliminary
53
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