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參數(shù)資料
| 型號： | TC94A04AF |
| 廠商： | Toshiba Corporation |
| 英文描述： | 1 CHIP AUDIO DIGITAL PROCESSOR |
| 中文描述： | 1芯片音頻數(shù)字處理器 |
| 文件頁數(shù)： | 28/42頁 |
| 文件大小： | 565K |
| 代理商： | TC94A04AF |
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TC94A04AF/AFD
2001-11-15
28
4.2
Boot ROM Format
The following shows the breakdown of the 18 bits.
00
Data that are being sent
01
Command
10
Final data (after the data are sent, the
CS
signal set to “H”).
11
Jump address (jump to any address in the boot-ROM)
17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
(MSB)
(LSB)
000h
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 All ‘0’
001h
11
Address
JMP
002h
11
Address
JMP
003h
01
CMD
CMD
004h
10
Data
Data (last)
005h
01
CMD
CMD
006h
00
Data
Data (cont)
007h
00
Data
Data (cont)
008h
00
Data
Data (cont)
009h
00
Data
Data (cont)
00Ah
10
Data
Data (last)
00Bh
11
Address
JMP 1FFh
1FFh
11
Address
JMP 1FFh
Note 5: Boot mode completes when the address reaches 1FFh, the maximum value. Therefore, for the final address
(1FFh), write JMP 1FFh (data
=
301FFh).
Note 6: For the head address (000h), write (00000).
Note 7: Please do not set a command of fs synchronous taking in to the address: 1FEh
(RUN-MUTE/IFF/DE-EMPH/DAC-LR/DAC-CS etc.).
Figure 2 Boot ROM Format and Example
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