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DSP56857 Datasheet(PDF) 274 Page - Freescale Semiconductor, Inc

Part # DSP56857
Description  Digitial Signal Controller
PDF  662 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 Datasheet(HTML) 274 Page - Freescale Semiconductor, Inc

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SPI Block Diagram
5685X Digital Signal Controller User Manual, Rev. 4
11-4
Freescale Semiconductor
11.3 SPI Block Diagram
Figure 11-1. SPI Block Diagram
SPR1
SPMSTR
Transmit Data Register
Shift Register
SPR0
CLK
Clock
Select
÷ 2
Clock
Divider
÷ 8
÷16
÷ 32
Clock
Logic
CPHA
CPOL
SPI
SPRIE
DSO
SPE
SPRF
SPTE
OVRF
M
S
Pin
Control
Logic
Receive Data Register
SPTIE
SPE
IPBus PERIPHERAL BUS
(From IPBus)
MODFEN
ERRIE
Control
MODF
SPMSTR
MOSI
MISO
SCLK
SS
2–16 Bits
DS[3:0]
SPI Transmit DMA
Request
SPI Transmit DSC
Interrupt Request
Received/Error DSC
Interrupt Request
SPI Receive DMA
Request
TX_REQ
RX/EER
REQ
TDMAEN RDMAEN



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