tc9496af TOSHIBA Semiconductor CORPORATION, tc9496af Datasheet - Page 36

• Manufacturer Part Number: tc9496af
• Description: 1 Chip Audio Digital Signal Processor
• Manufacturer: TOSHIBA Semiconductor CORPORATION

(internal signal)
Rom Dt [17:16]
BootRom Adrs
BTMODE
Boot Start Address
4.3.2 Self-Boot Operation when Setting Microcontroller
Boot Wait Period
BA [1:0]
BTIFCK
BTCSN
BTIFDI
BOOT
Parameter
/RST
BOOT pin
FS
address.
BOOT command (command: 41h) from the microcontroller starts the boot operation with no wait. The
boot operation when set from the microcontroler is the same as the self-boot operation at reset except
that the boot operation can start from any address.
In this mode, the microcontoroller can specify any address and the boot operation starts from that
The BOOT pin can be set to either High or Low. Setting the self-boot ROM start address using the
Table 3 Differences Depending on Operation Mode
Boot wait period
Select from 000h to 003h with BA0 and BA1
Figure 3 Boot Timing Chart (at reset)
2048 fs
Fixed to “H”
RESET Pin or Initialized Command
JMP
2
2
“H” Level
terminal
Yes
CMD
10
36
DT DT DE
11 12 13 14 15 16
C
D
D
8 clock
CMD
C
1024 fs (max)
D
Boot time
DE
C
Any address specified from microcontroller
CMD
D
C
BOOT Command
Any (don’t care)
DT: Data
DE: DataEnd
No
JMP
TC9496AF
JMP
3FF
2002-01-11