SH7080 Datasheet, PDF(1354/1644 Page) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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SH7080 Datasheet, PDF (1354/1644 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

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Section 23 Flash Memory

ï£§ Number of multipliers (1 byte): The number of selectable frequency multipliers and

divisors for the device.

This is normally 2, which indicates the main operating frequency and the operating

frequency of the peripheral modules.

ï£§ Multiplier 1 (1 byte): Multiplier or divisor for the main operating frequency

Multiplier: Numerical value of the frequency multiplier (e.g. H'04 for Ã4)

Divisor: Twoâs complement negative numerical value in the case of frequency division

(e.g. H'FE [-2] for Ã1/2)

ï£§ Multiplier 2 (1 byte): Multiplier or divisor for the peripheral operating frequency

Multiplier: Numerical value of the frequency multiplier (e.g. H'04 for Ã4)

Divisor: Twoâs complement negative numerical value in the case of frequency division

(e.g. H'FE [-2] for Ã1/2)

ï£§ SUM (1 byte): Checksum

Response

H'06

ï£§ Response H'06 (1 byte): Response to the new-bit-rate selection command

The ACK code is returned if the specified bit rate was selectable.

Error

response

H'BF

ERROR

ï£§ Error response H'BF (1 byte): Error response to new bit rate selection

ï£§ ERROR (1 byte): Error code

H'11: Sum-check error

H'24: Bit rate selection error (the specified bit rate is not selectable).

H'25: Input frequency error (the specified input frequency is not within the range from the

minimum to the maximum value).

H'26: Frequency multiplier error (the specified multiplier does not match an available one).

H'27: Operating frequency error (the specified operating frequency is not within the range

from the minimum to the maximum value).

Rev. 3.00 May 17, 2007 Page 1296 of 1582

REJ09B0181-0300

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