Project Bureau — ATF1502BE Pin Configuration

Project Bureau aims at documenting the bitstream format of Microchip ATF15xx CPLDs. This is a work in progress. See more in the repository.

Most pins are configured through the associated macrocells. This page describes configuration of dedicated inputs and pins configured to have a special function.

Switch Configuration Bitmap

Device uses 14 (known) fuses within range 16750..16790 for configuring pins TMS, TDI, CLK1, CLK2, OE1, CLR.

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
16750	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	IO	IO	IO	IO	IO	IO	IO	IO	IO	IO	IO	IO	IO	IO	?
16782	?	-	-	-	?	?	?	?

Pin TMS Configuration

Pin TMS uses the following 1 (known) fuses for configuration.

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
16750	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	IO	-	-	-	-	-	-	-	-	-	-	-	-	-	?

Fuse combinations for option "termination":

	16767
high_z	1
pull_up	0

Pin TDI Configuration

Pin TDI uses the following 1 (known) fuses for configuration.

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
16750	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	IO	-	-	-	-	-	-	-	-	-	-	-	-	?

Fuse combinations for option "termination":

	16768
high_z	1
pull_up	0

Pin CLK1 Configuration

Pin CLK1 uses the following 3 (known) fuses for configuration.

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
16750	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	IO	-	-	-	IO	IO	-	-	-	-	-	-	?

Fuse combinations for option "termination":

	16773	16774
bus_keeper	1	1
high_z	0	0
pull_down	1	0
pull_up	0	1

Fuse combinations for option "hysteresis":

	16769
off	1
on	0

Pin CLK2 Configuration

Pin CLK2 uses the following 3 (known) fuses for configuration.

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
16750	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	IO	-	-	-	-	IO	IO	-	-	-	-	?

Fuse combinations for option "termination":

	16775	16776
bus_keeper	1	1
high_z	0	0
pull_down	1	0
pull_up	0	1

Fuse combinations for option "hysteresis":

	16770
off	1
on	0

Pin OE1 Configuration

Pin OE1 uses the following 3 (known) fuses for configuration.

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
16750	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	IO	-	-	-	-	-	IO	IO	-	-	?

Fuse combinations for option "termination":

	16777	16778
bus_keeper	1	1
high_z	0	0
pull_down	1	0
pull_up	0	1

Fuse combinations for option "hysteresis":

	16771
off	1
on	0

Pin CLR Configuration

Pin CLR uses the following 3 (known) fuses for configuration.

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
16750	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	IO	-	-	-	-	-	-	IO	IO	?

Fuse combinations for option "termination":

	16779	16780
bus_keeper	1	1
high_z	0	0
pull_down	1	0
pull_up	0	1

Fuse combinations for option "hysteresis":

	16772
off	1
on	0