tc9496af TOSHIBA Semiconductor CORPORATION, tc9496af Datasheet - Page 38

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

5. Cautions on Use
5.1
5.2
5.3
5.3.1 Please do not Transmit the Following Command before Completing Rewriting of Data.
5.3.2 Please do not Include Data of an Intact Address.
5.3.3 Please do not Perform Continuation Transmission Over the 0
5.4
which makes
from the microcomputer was performed normally.
signal, before sending a command, it may stop performing control from a microcomputer.
The Cautions at the Time of Using ACMP (address compare mode)
condition.
following command was carried out, or rewriting has been completing using IFOK signal.
under execution, into transmitting data. When data of an intact address is contained, operation in
ACMP mode cannot de ended. If the following command is transmitted in this state, RAM data will
become unfixed also by the command with the command unrelated to CRAM or ORAM.
the rewriting processing.
RAM data.
two steps.
The Handling of NC Terminal
31 pin and 37 pin
81 pin
Initial Reset
The Cautions at the Time of Using IFOK Terminal
·
·
·
·
·
After a power-supply injection, once at least, please set up a required register after applying reset
The timing which outputs IFOK signal is the signal which shows whether the command received
Since the initial value of IFOK signal is unfixed when a control microcomputer is checking IFOK
In rewriting coefficient data and offset data using ACMP mode, please do not use it the following
Please do not send the following command before completing rewriting of data of CRAM or ORAM.
Please check that waiting the term after rewriting has been completed until it transmits the
Please do not include coefficient data of offset data of address which are not used by the program
It needs to reset and all data needs to be reset up to interrupt before completing rewriting of data in
The transmission over the 0
The same of this restriction is said not only of ACMP mode but continuation transmission of usual
For example, when writing in 1B8h from 1BFh and 007h from 000h or CRAM, it must transmit in
Please use NC terminal by either of the following.
Open (non-connection)
Connect to V
Connect to GND
Open (non-connection)
Connect to V
RESET
DD
DD
terminal “L” level and making the value of an internal register data.
th
address may incorrect-operate.
38
th
Address.
TC9496AF
2002-01-11