參數(shù)資料
型號(hào)： TDA7500ATR
廠商： STMICROELECTRONICS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝： ROHS COMPLIANT, TQFP-100
文件頁(yè)數(shù)： 24/41頁(yè)
文件大?。?/td> 431K
代理商： TDA7500ATR
TDA7500A
30/40
s
I2C and SPI interface
s
XCHG Interface for DSP to DSP communication
s
External Memory Interface (DRAM/SRAM) for time-delay and traffic information
s
Double Debug Port
DATA AND PROGRAM MEMORY
Both DSP0 and DSP1 have Data and Program memories attached to them. Each of the memories are described
below and it is implied that there are two of each type, one set connected to DSP0 and the other to DSP1. The
only exception is the case of the P-RAM where DSP1 has a 2048 x 24-Bit PRAM and DSP0 has a 5.5K x 24-
Bit PRAM.
1024 x 24-Bit X-RAM (XRAM)
This is a 1024 x 24-Bit Single Port SRAM used for storing coefficients. The 16-Bit XRAM address, XABx(15:0)
is generated by the Address Generation Unit of the DSP core. The 24-Bit XRAM Data, XDBx(23:0), may be writ-
ten to and read from the Data ALU of the DSP core. The XDBx Bus is also connected to the Internal Bus Switch
so that it can be routed to and from all peripheral blocks.
1024 x 24 Bit Y-RAM (YRAM)
This is a 512 x 24-Bit Single Port SRAM used for storing coefficients. The 16-Bit address, YABx(15:0) is gener-
ated by the Address Generation Unit of the DSP core. The 24-Bit Data, YDBx(23:0), is written to and read from
the Data ALU of the DSP core. The YDBx Bus is also connected to the Internal Bus Switch so that it can be
routed to and from other blocks.
2048 x 24-Bit Program RAM (PRAM 5.5K x 24-bit for DSP0)
This is a 2048 x 24-Bit Single Port SRAM used for storing and executing program code. The 16-Bit PRAM Ad-
dress, PABx(15:0) is generated by the Program Address Generator of the DSP core for Instruction Fetching,
and by the AGU in the case of the Move Program Memory (MOVEM) Instruction. The 24-Bit PRAM Data (Pro-
gram Code), PDBx(23:0), can only be written to using the MOVEM instruction. During instruction fetching the
PDBx Bus is routed to the Program Decode Controller of the DSP core for instruction decoding.
512 x 24-Bit Bootstrap ROM (PROM 256 x 24 Bit for DSP1)
This is a 512 x 24-Bit factory programmed Boot ROM used for storing the program sequence and for initializing
the DSP. Essentially this consists of reading the data via I2C, SPI or EMI interface and store it in PRAM, XRAM,
YRAM, and/or external DRAM.
相關(guān)PDF資料
PDF描述
TDA7500 SPECIALTY CONSUMER CIRCUIT, PQFP100
TDA7502013TR SPECIALTY CONSUMER CIRCUIT, PQFP44
TDA7502E013TR SPECIALTY CONSUMER CIRCUIT, PQFP44
TDA7503 SPECIALTY CONSUMER CIRCUIT, PQFP100
TDA7511 AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
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