TTL Routing

TTL Crossbar connections

Note

"Input side" here is referring to the input of the crossbar. You can route a pin from its input side to the output side. The labelling refers to where it came from, or where it is going, depending on the side.

Index	Input Side	Output Side
0	KEY0	LED0
1	KEY1	LED1
2	KEY2	LED2
3	KEY3	LED3
4	SOFTWARE0	DIGITIZER_TRIG0
5	SOFTWARE1	DIGITIZER_TRIG1 (NOT IMPLEMENTED)
6	SOFTWARE2	DIGITIZER_TRIG2 (NOT IMPLEMENTED)
7	SOFTWARE3	DIGITIZER_TRIG3 (NOT IMPLEMENTED)
8	SYZYGY_IN0 (S16)	PB_RUN
9	SYZYGY_IN1 (S18)	PB_TRIG
10	SYZYGY_IN2 (S20)	PB_RSTN
11	SYZYGY_IN3 (S22)	PB_ISR
12	PB_FLAG0	NC
13	PB_FLAG1	NC
14	PB_FLAG2	SYZYGY_OUT0 (S24)
15	PB_FLAG3	SYZYGY_OUT1 (S26)
16	PB_FLAG4	SYZYGY_OUT2 (S17)
17	PB_FLAG5	SYZYGY_OUT3 (S19)
18	PB_FLAG6	SYZYGY_OUT4 (S21)
19	PB_FLAG7	SYZYGY_OUT5 (S23)
20	PB_FLAG8	SYZYGY_OUT6 (S25)
21	PB_FLAG9	SYZYGY_OUT7 (S27)
22	PB_FLAG10	NC
23	PB_FLAG11	NC
24	NC	NC
25	NC	NC
26	NC	NC
27	LOOPBACK0	LOOPBACK0
28	LOOPBACK1	LOOPBACK1
29	LOOPBACK2	LOOPBACK2
30	LOOPBACK3	LOOPBACK3