Raspberry Pi Interface to Cosmac Elf

Pi Pin#	Pi Function	Elf Pin	Elf Function
40	BCM 21	xx
39	GND	xx
38	BCM 20	xx
37	BCM 26	xx
36	BCM 16	xx
35	BCM 18	xx	O7
34	GND	xx
33	BCM 13	xx	O6
32	BCM 12	xx	O5
31	BCM 6	xx	O4
30	GND	xx
29	BCM 5	xx	O3
28	BCM 1	xx	O2
27	BCM 0	xx	O1
26	BCM 7, CE1	xx	O0
25	GND	xx
24	BCM 8, CE0	xx	IN7
23	BCM 11,SCLK	xx	IN6
22	BCM 25	xx	IN5
21	BCM 9, MISO	xx	IN4
20	GND	xx
19	BCM 10, MOSI	xx	IN3
18	BCM 24	xx	IN2
17	3.3 V	xx
16	BCM 23	xx	IN1
15	BCM 22	xx	IN0
14	GND	xx
13	BCM 27	xx	WE-
12	BCM 18	xx	CLR-
11	BCM 17	xx	WAIT-
10	BCM 15, RXD	xx	UART Tx
9	GND	xx
8	BCM 14, TXD	xx	UART Rx
7	BCM 4	xx	IN-
6	GND	xx
5	BCM 3, SCL	xx
4	5 V	xx
3	BCM 2, SDA	xx
2	5 V	xx
1	3.3 V	xx

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Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
png	gpio-numbers-pi2.png	r1	manage	53.2 K	2017-11-26 - 18:46	PeterSchmid

Topic revision: r2 - 2017-11-27 - PeterSchmid