TC9496AF Datasheet, PDF (34/48 Pages) Toshiba Semiconductor – 1 Chip Audio Digital Signal Processor

4.2 Boot ROM Format
The following shows the brake down of the 18 bits.
TC9496AF
00 Data that are being sent
01 Command
10 Final data (after the data are sent, the CS signal is set to "H").
11 Jump address (jump to any address in the self-boot ROM).
17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
(MSB)
(LSB)
000h 11
Address
JMP
001h 11
Address
JMP
002h 11
Address
JMP
003h 11
Address
JMP
004h 01
CMD
CMD
005h 10
Data
Data (last)
006h 01
CMD
CMD
007h 00
Data
Data (cont)
008h 00
Data
Data (cont)
009h 00
Data
Data (cont)
00Ah 00
Data
Data (cont)
00Bh 10
Data
Data (last)
00Ch 11
Address
JMP 3FFh
3FFh 11
Address
JMP 3FFh
Figure 2 Boot ROM Format and Example
Note 3: Boot mode completes when the address reaches 3FFh, the maximum value.
Therefore, for the final address, write JMP 3FFh (data = 303FFh).
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2002-01-11