tc9496af TOSHIBA Semiconductor CORPORATION, tc9496af Datasheet - Page 33
tc9496af
Manufacturer Part Number
tc9496af
Description
1 Chip Audio Digital Signal Processor
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TC9496AF.pdf
(48 pages)
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4. Self-Boot Function Description
RESET
4.1
BOOT
BA1
BA0
Self-Boot Function
modes to be set later. The microcontroller interface circuit supports two format: I
mode. However, the boot must be executed in Standard Transmission.
The TC9496AF supports a self-boot function for setting coefficients and offsets.
As Figure 1 shows, the data are set via the microcontroller interface circuit.
First saving the data to be set via the microcontroller in the self-boot ROM (SBROM) allows various
All the command inputs from the exterior are disregarded during a boot term.
Self-boot circuit
(1024 word
SBROM
´ 18 bit)
Figure 1 Self-Boot System
Timing
gener
-ator
BTMODE
BTIFCK
BTCSN
BTIFDI
33
Microcontroller interface circuit
Internal
1
CSN
0
Internal
1
IFCK
0
Internal
1
IFDI
0
Internal
I2CS
2
C and the original
TC9496AF
IFCK
IFDI
I2CS
2002-01-11
CS
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