Fujitsu MCJ3230AP manual Identify Packet Device A1h, Error register

Host Interface

!

!

When the Eject switch is pressed

When media is write-protected

Otherwise, the command ends normally. If a hardware error by which the command cannot be executed occurs, as is the case with other commands, the command ends with Aborted Command.

Table 4.25 Error register

Bit	7	Bit 6	Bit 5	Bit	4	Bit 3	Bit	2	Bit 1	Bit	0
0		WP	MC	0		MCR	0		NM	0

WP: Set to 1 when write-protected.

MC: Set to 1 when media is exchanged. Reported only once.

MCR: Set to 1 when the Eject switch is pressed. Reported only once.

NM: Set to 1 when no media is inserted.

If this command is received while the media status notification function is disabled, this command responds with the ODD status assuming that the media status notification function is enabled. Subsequently, this command operates assuming that the media status notification function is enabled until it is set to disabled.

4.5.6 IDENTIFY PACKET DEVICE (A1h)

		Table 4.26 IDENTIFY PACKET DEVICE command
						Bit
	7		6	5	4		3	2	1	0
CM	1	0		1	0	0		0	0	1
DH	X		X	X	DEV		X	X	X	X
CH	X		X	X	X		X	X	X	X
CL	X		X	X	X		X	X	X	X
SN	X		X	X	X		X	X	X	X
SC	X		X	X	X		X	X	X	X
FR	X		X	X	X		X	X	X	X

When the ODD receives this command, it transfers device parameter information to the host. It accepts this command even if in standby mode.

Table 4.27 lists the transfer data format. The reserved word indicates a value of 0.

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