Preliminary
S3C2451X RISC MICROPROCESSOR
HS_SPI CONTROLLER
20-1
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
20
HS_SPI
CONTROLLER
OVERVIEW
The High Speed Serial Peripheral Interface (HS_SPI) can interface the serial data transfer. HS_SPI has two
8/16/32-bit shift registers for transmission and receiving, respectively. During an HS_SPI transfer, data is
simultaneously transmitted (shifted out serially) and received (shifted in serially). HS_SPI supports the protocols
for National Semiconductor Microwire and Motorola Serial Peripheral Interface.
FEATURES
The features of the HS_SPI are:
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Supports full duplex
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8/16/32-bit shift register for TX/RX
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8-bit prescale logic
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3 clock source
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Supports 8bit/16bit/32bit bus interface
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Supports the Motorola HS_SPI protocol and National Semiconductor Microwire
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Two independent transmit and receive FIFOs, each 16 samples deep by 32-bits wide
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Master-mode and Slave-mode
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Receive-without-transmit
operation