Sun Microsystems manual Sun Enterprise 220R Server Owner’s Guide October

Pin	Mnemonic	Signal Name	Description
11	BUSY	Busy	Driven high to indicate the
			peripheral device is not ready
			to receive data during forward
			channel transfer. Used to send
			Data3 and Data7 during
			reverse channel transfer.
12	PERROR	Parity Error	Driven high by peripheral
			device to indicate an error in
			the paper path during forward
			channel transfer. Used to send
			Data2 and Data6 during
			reverse channel transfer.
13	SELECT_L	Select Low	Indicates the peripheral device
			is online during forward
			channel transfer. Used to send
			Data1 and Data5 during
			reverse channel transfer.
14	AFXN_L	Auto Feed Low	Set low by the host to drive
			the peripheral into auto-line
			feed mode during forward
			channel transfer. During
			reverse channel transfer, set
			low to indicate host can
			receive peripheral device data
			and then set high to
			acknowledge receipt of
			peripheral data.
15	ERROR_L	Error Low	Set low by the peripheral
			device to indicate an error
			during forward channel
			transfer. In reverse channel
			transfer, set low to indicate
			peripheral device has data
			ready to send to the host.
			Used to send Data0 and
			Data4.
16	INIT_L	Initialize Low	Driven low by the host to reset
			peripheral.
17	PAR_IN_L	Peripheral Input	Set low by the host to select
		Low	peripheral device for forward
			channel transfer. Set high to
			indicate bus direction is from
			peripheral to host.
18		Signal ground	Signal ground
19		Signal ground	Signal ground

166 Sun Enterprise 220R Server Owner’s Guide • October 1999