Fujitsu MCJ3230AP manual Request sense data, Error code

4.6 Packet Commands

When the ODD detects a CRC error involving the Ultra DMA transfer during the data transfer using this command, it returns the CHECK CONDITION. (The Sense Key of the Error register indicates ABORTED COMMAND.)

The original sense data at the CRC error occurrence is reported normally using the REQUEST SENSE command. Otherwise, it will be reported when another command is received.

The sense data format is shown in Table 4.100.

Table 4.100 Request sense data

Bit	7	6	5		4	3	2	1	0
Byte
0	Valid				Error Code (70h or 71h)
1					Reserved (00h)
2		Reserved (0h)					Sense Key
3-6					Information
7			Additional Sense Length (18h)
8-11			Command-Specific Information
12				Additional Sense Code
13			Additional Sense Code Qualifier
14					Reserved (00h)
15-17					Sense-key specific
18-31				Additional Sense Bytes

When the Valid bit is 1, the information field (bytes 3 to 6) is effective.

Error Code indicates the sense data format and type. See Table 4.101.

	Table 4.101 Error code
Error Code	Report timing
70h (Current error)	Reported for a normal error.
71h(Deferred error)	Reported when an error occurs in the command that accesses the write
	cache when the write cache is enabled. If this sense data is reported, the
	command that reported the Check Condition status is not executed.

C156-E205-01EN 4-67