tc9447f TOSHIBA Semiconductor CORPORATION, tc9447f Datasheet - Page 33

• Manufacturer Part Number: tc9447f
• Description: Single-chip Audio Digital Signal Processor
• Manufacturer: TOSHIBA Semiconductor CORPORATION

TC9447F
(3-2) At the time of self boot command use
When a self boot command (41h: BOOT) is transmitted, even if end conditions happen to the
acknowledgement signal of the last of boot command data, please repeal.
If it becomes the boot mode, data will be transmitted internal boot ROM data using the internal
circuit of a microcomputer interface.
2
Data is transmitted not in the I
C bus mode but in the standard transmitting mode at the time of
boot mode operation in that case.
2
Therefore, IFDI terminal will be in the state of H level, and operation of an I
C bus and
conditions may not be performed normally.
The timing at the time of self boot command transmission is shown if Figure 5.
Figure 5 Timing at the time of self boot command transmission
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2002-02-05