D12320VF25V Datasheet, PDF (800/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 17 ROM
Response H'06
• Response, H'06, (1 byte): Response to selection of a new bit rate
When it is possible to set the bit rate, the response will be ACK.
Error
H'BF ERROR
Response
• Error response, H'BF, (1 byte): Error response to selection of new bit rate
• ERROR: (1 byte): Error code
H'11: Sum checking error
H'24: Bit-rate selection error
The rate is not available.
H'25: Error in input frequency
This input frequency is not within the specified range.
H'26: Multiplication-ratio error*
The ratio does not match an available ratio.
H'27: Operating frequency error*
The frequency is not within the specified range.
Note: * This error does not occur with this LSI.
Received Data Check
The methods for checking of received data are listed below.
(1) Input frequency
The received value of the input frequency is checked to ensure that it is within the range of
minimum to maximum frequencies which matches the clock modes of the specified device. When
the value is out of this range, an input-frequency error is generated.
(2) Multiplication ratio
The received value of the multiplication ratio or division ratio is checked to ensure that it matches
the clock modes of the specified device. When the value is out of this range, an input-frequency
error is generated.
Rev.7.00 Feb. 14, 2007 page 766 of 1108
REJ09B0089-0700