tc9446fg TOSHIBA Semiconductor CORPORATION, tc9446fg Datasheet - Page 16
tc9446fg
Manufacturer Part Number
tc9446fg
Description
Audio Digital Processor For Decode Of Dolby Digital Ac-3 , Mpeg2 Audio
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TC9446FG.pdf
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2-2-2. The Data Transmission Method in I
1)
Program boot and a program start
interruption vector address is become 0000h-0009h.
booted to a vector address.
store a program in 000Ah-007Fh.
bit command transmitted after reset need to be set to “H”. (command = 000060h)
rank, and it transmits by the low-rank stuffing of 24 bit data in the order of a higher rank (20 bits)
and a low rank (20 bits).
words and END Condition is transmitted, program boot will complete it.
command to “L”, and transmitting END Condition, without performing data transmission.
As for TC9446FG, RAM is assigned 128 words of program address 0000h-007Fh, and the
Therefore, in order to operate TC9446FG, it needs to interrupt at least and a program needs to be
In addition, a program load needs to be continuously performed to an interruption vector address to
In order to perform program boot, the program RAM boot start bit and the soft reset bit in the 24
And after command transmission, program data (40 bits) is divided into 20 bits of a higher rank/low
Since a write-in address is made automatic (+1) from 0000h, if it transmits the required number of
In addition, the write-in address of program boot always starts from 0000h.
A start of a program is performed by carrying out and transmitting the soft reset bit in a 24 bit
The procedure of program boot and a program start is shown in Figure 11.
2
C Mode
16
TC9446FG
2005-09-28
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