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3. Taito Type X4 USBIO

Taito have a lot of boards from this generation named “USBIO”. Even within one board revision there are multiple firmware revisions.

These diagrams are for 00020102/M9009144A.

3.1 Board overview

Header	Function
`G1`	Primary game interface
`G2`	Auxiliary game interface
`P1`	Power input
`B1`	Expansion header 1
`B2`	Expansion header 1
`Z1`	JTAG interface

3.2 G1 Primary Game Interface Diagram

Pin	Function	Additional functions
1	UART 2 RxD	Nesica Rx, Input 48
2	UART 2 TxD	Nesica Tx
3	GND
4	Frame GND
5	+5V
6	+5V
7	UART 0 RxD	Input 49
8	UART 0 TxD
9	GND
10	Frame GND
11	Analog +5V
12	Analog +5V
13	Input 24	Analog 0
14	Input 25	Analog 1
15	Input 26	Analog 2
16	Input 27	Analog 3
17	Input 28	Analog 4
18	Input 29	Analog 5
19	Input 30	Analog 6
20	Input 31	Analog 7
21	Analog GND
22	Analog GND
23	Frame GND
24	Frame GND
25	Input 16	CTR 0 Pulse
26	Input 17	CTR 0 Dir
27	Input 18	CTR 1 Pulse
28	Input 19	CTR 1 Dir
29	Input 20	CTR 2 Pulse
30	Input 21	CTR 2 Dir
31	Input 22	CTR 3 Pulse
32	Input 23	CTR 3 Dir
33	Input 0
34	Input 1
35	Input 2
36	Input 3
37	Input 4	Coin 3
38	Input 5	Coin 2
39	Input 6	Coin 1
40	Input 7	Coin 0
41	Output 0	PWM 0
42	Output 1	PWM 1
43	Output 2	PWM 2
44	Output 3	PWM 3
45	Output 4	PWM 4
46	Output 5	PWM 5
47	Output 6	PWM 6
48	Output 7	PWM 7
49	Output 8	PWM 8
50	Output 9	PWM 9, Nesica LED R
51	Output 10	PWM 10, Nesica LED G
52	Output 11	PWM 11, Nesica LED B
53	Output 12	Meter 3
54	Output 13	Meter 2
55	Output 14	Meter 1
56	Output 15	Meter 0
57	Output 16
58	Output 17
59	Output 18
60	Output 19
61	Output 20
62	Output 21
63	Output 22
64	Output 23

3.3 G2 Auxiliary Game Interface Diagram

Pin	Function	Additional functions
1	UART 3 TxD
2	UART 3 RxD	Input 50
3	UART 1 RxD	Input 53
4	UART 1 TxD
5	Power
6
7	+5V
8	SCK
9	MOSI
10	CS 0	Output 102
11	CS 1	Output 103
12	MISO	Input 53
13	Power
14
15	+5V
16	+5V
17	Input 8
18	Input 9
19	Input 10
20	Input 11
21	Output 40
22	Output 41
23	Shield GND
24	Shield GND

3.4 B1 Diagram

Pin	Function	Additional functions
1	VCC
2
3	UART 1 TxD
4	UART 1 RxD	Input 53
5	Output 104
6	Input 32	Output 24
7	Input 33	Output 25
8	Input 34	Output 26
9	Input 35	Output 27
10	Input 36	Output 28
11	Input 37	Output 29
12	Input 38	Output 30
13	Input 39	Output 31
14	GND
15	GND

3.5 B2 Diagram

Pin	Function	Additional functions
1	+5V
2	+3.3V
3
4
5	Input 40	Output 33
6	Input 41	Output 32
7	Input 42	Output 35
8	Input 43	Output 34
9	Input 44	Output 37
10	Input 45	Output 36
11	Input 46	Output 39
12	Input 47	Output 38
13	GND
14	GND
15	GND

3.6 Z1 JTAG Interface Diagram

Pin	Function
1	TCK
2	GND
3	TRST#
4	EMLE
5	TDO
6
7	MD1
8	VCC
9	TMS
10	MD0
11	TDI
12	GND
13	RES#
14	GND