Texas Instruments DM6467 Digital Video Evaluation Module TMDXEVM6467T TMDXEVM6467T Datenbogen
Produktcode
TMDXEVM6467T
SPRS605C – JULY 2009 – REVISED JUNE 2012
7.23 Serial Peripheral Interface (SPI)
The SPI is a high-speed synchronous serial input/output port that allows a serial bit stream of programmed
length (2-to-16 bits) to be shifted into and out of the device at a programmed bit-transfer rate. The SPI is
normally used for communication between the TMS320DM646x DMSoC and external peripherals. Typical
applications inlcude a interface to external I/O or peripheral expansion via devices such as shift regisers,
display drivers, SPI EEPROMs, and Analog-to-Digital Converters (ADCs).
length (2-to-16 bits) to be shifted into and out of the device at a programmed bit-transfer rate. The SPI is
normally used for communication between the TMS320DM646x DMSoC and external peripherals. Typical
applications inlcude a interface to external I/O or peripheral expansion via devices such as shift regisers,
display drivers, SPI EEPROMs, and Analog-to-Digital Converters (ADCs).
7.23.1 SPI Device-Specific Information
The DM6467T SPI supports the following features:
•
Master/slave operation
•
2 chip selects for interfacing/control to multiple SPI slave devices
•
3-, 4-, 5-wire interface [The DM6467T supports 3-pin mode, 2 4-pin modes, and the 5-pin mode.]
•
16-bit shift register
•
Receive buffer register
•
8-bit clock prescaler
•
Programmable SPI clock frequency range, character length, and clock phase and polarity
7.23.2 SPI Peripheral Register Description(s)
shows the SPI registers.
Table 7-109. SPI Registers
HEX ADDRESS RANGE
ACRONYM
REGISTER NAME
01C6 6800
SPIGCR0
SPI Global Control Register 0
01C6 6804
SPIGCR1
SPI Global Control Register 1
01C6 5808
SPIINT
SPI Interrupt Register
01C6 680C
SPIILVL
SPI Interrupt Level Register
01C6 6810
SPIFLG
SPI Flag Status Register
01C6 6814
SPIPC0
SPI Pin Control Register 0
01C6 6818
–
Reserved
01C6 681C
SPIPC2
SPI Pin Control Register 2
01C6 6820 – 01C6 6838
–
Reserved
01C6 683C
SPIDAT1
SPI Shift Register 1
01C6 6840
SPIBUF
SPI Buffer Register
01C6 6844
SPIEMU
SPI Emulation Register
01C6 6848
SPIDELAY
SPI Delay Register
01C6 684C
SPIDEF
SPI Default Chip Select Register
01C6 6850
SPIFMT0
SPI Data Format Register 0
01C6 6854
SPIFMT1
SPI Data Format Register 1
01C6 6858
SPIFMT2
SPI Data Format Register 2
01C6 685C
SPIFMT3
SPI Data Format Register 3
01C6 6860
INTVEC0
SPI Interrupt Vector Register 0
01C6 6864
INTVEC1
SPI Interrupt Vector Register 1
01C6 6868 – 01C6 6FFF
–
Reserved
Copyright © 2009–2012, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
311
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