TAM-3517 HARDWARE MANUAL rev B
July 3 2012, TechNexion
48
8.7
Serial Communication Interfaces – McSPI Signals Description
The multichannel serial port interface (McSPI) is a master/slave synchronous serial bus. The
McSPI modules differ as follows: SPI1 and SPI2 support up to four peripherals.
The McSPI instances include the following main features:
Serial clock with programmable frequency, polarity, and phase for each channel
Wide selection of SPI word lengths ranging from 4 bits to 32 bits
Up to four master channels or single channel in slave mode
Master multichannel mode:
o
Full duplex/half duplex
o
Transmit-only/receive-only/transmit-and-receive modes
o
Flexible I/O port controls per channel
o
Two direct memory access (DMA) requests (read/write) per channel
Single interrupt line for multiple interrupt source events
Power management through wake-up capabilities
Enable the addition of a programmable start-bit for SPI transfer per channel (start-bit
mode)
Support start-bit write command
Support start-bit pause and break sequence
64 bytes built-in FIFO available for a single channel
Force CS mode for continuous transfers
MULTICHANNEL SERIAL PORT INTERFACE (McSPI1)
SIGNAL NAME
DESCRIPTION
TYPE PIN TAM-3517
Mcspi1_clk
SPI Clock
IO
82
Mcspi1_simo
Slave data in, master data out
IO
88
Mcspi1_somi
Slave data out, master data in
IO
85
Mcspi1_cs0
SPI Enable 0, polarity configured by software
IO
89
Mcspi1_cs1
SPI Enable 1, polarity configured by software
O
87
Mcspi1_cs2
SPI Enable 2, polarity configured by software
O
78
Mcspi1_cs3
SPI Enable 3, polarity configured by software
O
86
MULTICHANNEL SERIAL PORT INTERFACE (McSPI2)
SIGNAL NAME
DESCRIPTION
TYPE PIN TAM-3517
Mcspi2_clk
SPI Clock
IO
91
Mcspi2_simo
Slave data in, master data out
IO
93
Mcspi2_somi
Slave data out, master data in
IO
92
Mcspi2_cs0
SPI Enable 0, polarity configured by software
IO
94
Mcspi2_cs1
SPI Enable 1, polarity configured by software
O
90
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from