Intel SA-1100 manual Ber, Abc, Iol, Iul, Iou, Iuu, Ool, Oul, Oou, Ouu

Peripheral Control Module

Bit	Name		Description
2	BER	Bus error status.
		0	– DMA has not attempted an access to reserved/nonexistent memory space.
		1	– DMA has attempted an access to a reserved/nonexistent location in external
		memory. The errant DMA read returns zeros.
3	ABC	AC bias count status.
		0 – AC bias transition counter has not decremented to zero, or API is programmed to all
		zeros.
		1	– AC bias transition counter has decremented to zero, indicating that the L_BIAS pin
		has transitioned the number of times specified by the API control bit field. Counter is
		reloaded with the value in API but is disabled until the user clears ABC.
4	IOL	Input FIFO overrun lower panel status.
		0	– Input FIFO for the lower panel display has not overrun.
		1 – DMA attempted to place data into the input FIFO for the lower panel after it has been
		filled.
5	IUL	Input FIFO underrun lower panel status.
		0	– Input FIFO for the lower panel display has not underrun.
		1	– DMA not supplying data to input FIFO for the lower panel at a sufficient rate. FIFO
		has completely emptied; pixel unpacking logic has attempted to take added data from
		the FIFO.
6	IOU	Input FIFO overrun upper panel status.
		0	- Input FIFO for the upper or whole panel display has not overrun.
		1 - DMA attempted to place data into the input FIFO for the upper or whole panel after it
		has been filled.
7	IUU	Input FIFO underrun upper panel status.
		0	– Input FIFO for the upper or whole panel display has not underrun.
		1	– DMA not supplying data to input FIFO for the upper or whole panel at a sufficient
		rate. FIFO has completely emptied; pixel unpacking logic has attempted to take added
		data from the FIFO.
8	OOL	Output FIFO overrun lower panel status.
		0	– Output FIFO for the lower panel display has not overrun.
		1	– Dither logic attempted to place data into the output FIFO for the lower panel after it
		had been filled.
9	OUL	Output FIFO underrun lower panel status.
		0	– Output FIFO for the lower panel display has not underrun.
		1 – LCD dither logic not supplying data to output FIFO for the lower panel at a sufficient
		rate. FIFO has completely emptied and data pin driver logic has attempted to take
		added data from the FIFO.
10	OOU	Output FIFO overrun upper panel status.
		0	– Output FIFO for the upper or whole panel display has not overrun.
		1	– Dither logic attempted to place data into the output FIFO for the upper or whole
		panel after it had been filled.
11	OUU	Output FIFO underrun upper panel status.
		0	– Output FIFO for the upper or whole panel display has not underrun.
		1 – LCD dither logic not supplying data to output FIFO for the upper or whole panel at a
		sufficient rate. FIFO has completely emptied and data pin driver logic has attempted to
		take added data from the FIFO.
31..12	—	Reserved.

SA-1100 Developer’s Manual 11-49