Table of Contents
Advertisement
Error Response
H'C0
• Error response, H'C0, (one byte): Error response for user boot MAT blank check
• Error code, H'51, (one byte): Erasing error
An error occurred and erasure was not completed.
(7) Command Error
A command error will occur when a command is undefined, the order of commands is incorrect,
or a command is unacceptable. Issuing a clock-mode selection command before a device selection
or an inquiry command after the transition to programming/erasing state command, is an example.
Error Response
H'80
• Error response, H'80, (one byte): Command error
• Command, H'xx, (one byte): Received command
(8) Command Order
The order for commands in the inquiry selection state is shown below.
1. A supported device inquiry (H'20) should be made to inquire about the supported devices.
2. The device should be selected from among those described by the returned information and set
with a device-selection (H'10) command.
3. A clock-mode inquiry (H'21) should be made to inquire about the supported clock modes.
4. The clock mode should be selected from among those described by the returned information
and set.
5. After selection of the device and clock mode, inquiries for other required information should
be made, such as the multiplication-ratio inquiry (H'22) or operating frequency inquiry (H'23),
which are needed for a new bit-rate selection.
6. A new bit rate should be selected with the new bit-rate selection (H'3F) command, according
to the returned information on multiplication ratios and operating frequencies.
7. After selection of the device and clock mode, inquire the information of the user boot MAT
and user MAT with the user boot MATs information inquiry (H'24), user MATs information
inquiry (H'25), erased block information inquiry (H'26), and programming unit inquiry (H'27).
8. After making inquiries and selecting a new bit rate, issue the transition to programming/erasing
state command (H'40). The boot program will then enter the programming/erasing state.
H'51
H'xx
Rev. 1.00, 09/03, page 597 of 704
Advertisement
Table of Contents
