R5F72115D160FPV datasheet(990/1228 Pages) RENESAS

990 / 1228 page

Section 21 Flash Memory

Rev. 2.00 May. 08, 2008 Page 966 of 1200

REJ09B0344-0200

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Command Error

Command errors are generated by undefined commands, commands sent in an incorrect order, and

the inability to accept a command. For example, sending the clock-mode selection command

before device selection or an inquiry command after the transition-to-programming/erasure state

command generates a command error.

Error

response

H'80

H'xx

• Error response H'80 (1 byte): Command error

• Command H'xx (1 byte): Received command

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Order of Commands

In the inquiry-and-selection state, commands should be sent in the following order.

1. Send the inquiry on supported devices command (H'20) to get the list of supported devices.

2. Select a device from the returned device information, and send the device selection command

(H'10) to select that device.

3. Send the inquiry on clock mode command (H'21) to get the available clock modes.

4. Select a clock mode from among the returned clock modes, and send the clock-mode selection

command (H'11).

5. After selection of the device and clock mode, send the commands to inquire about frequency

multipliers (H'22) and operating frequencies (H'23) to get the information required to select a

new bit rate.

6. Taking into account the returned information on the frequency multipliers and operating

frequencies, send a new-bit-rate selection command (H'3F).

7. After the device and clock mode have been selected, get the information required for

programming and erasure of the user boot MAT and user MAT by sending the commands to

inquire about the user boot MAT (H'24), user MAT (H'25), erasure block (H'26), and

programming size (H'27).

8. After making all necessary inquiries and the new bit rate selection, send the transition-to-

programming/erasure state command (H'40) to place the boot program in the

programming/erasure state.

R5F72115D160FPV Datasheet(PDF) 990 Page - Renesas Technology Corp