TDA7590 Просмотр технического описания (PDF) - STMicroelectronics
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TDA7590 Datasheet PDF : 40 Pages
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DSP peripherals
TDA7590
The key features of the host interface are:
● 8 bit parallel port "Full-duplex" Dedicated host register bank
● Dedicated Mozart Core DSP register core bank.
● Register banks map directly into Mozart X memory space
● 3 transfer modes:
– host command
– Host to Mozart Core DSP
– Mozart Core DSP to host
● Access protocols:
– Software polled
– Interrupt
– DMA access by the Mozart Core DSP core
● 2+ wait states clock cycles per transfer
● Supported instructions:
– Data transfer between Mozart core and external host using Mozart MOVE
instruction
– Simple I/O service routine with bit addressing instructions
– IO service using fast interrupts with MOVEP instructions.
7.5
ESSI
The ESSI peripheral enables serial-port communication between the DSP core and external
devices including CODECs, DSP, Microprocessors. The ESSI is capable of driving 12
programmable external pins which can be configured as GPIO ports C and D or ESSI pins.
The key features of the ESSI are:
● Independent receiver and transmitter
● Synchronous or Asynchronous channel modes Synchronous. Receiver and transmitter
use same clock/sync Asynchronous. Receiver and transmitter may use separate
clock/sync " Up to one transmitter enabled in asynchronous channel mode.
● Up to three transmitters enabled in synchronous channel mode.
● Normal mode. One word per period.
● Network Mode. Up to 32 words per period.
7.6
EOC
The Salieri Extended on-chip memory interface provides access to 40K of on-chip memory.
The Mozart core will treat this memory as if it were external. Access by off-chip expansion
bus masters is permitted. All accesses to the extended on-chip RAM are controlled by the
extended on-chip memory control register. This register determines which combinations of
the Address Attribute pins should be interpreted as accesses to the 40K of RAM.
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