Fujitsu MCM3064AP, MCM3130AP manual Request sense data, Error code

Host Interface

Table 4.99 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 4.100.

	Table 4.100 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.

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