SIB header

The SIB header is a 3 rows and 32 pins header that connect the SIB to the MIB.

SIB header

Header pinout

The SIB header pinout is defined as below:

	A	B	C
1	GND	GND	GND
2	+12V_SW	+12V_SW	+12V_SW
3	GND	GND	GND
4	+12V_SW	+12V_SW	+12V_SW
5	GND	GND	GND
6	+5V_SW	+5V_SW	+5V_SW
7	GND	GND	GND
8	+5V_SW	+5V_SW	+5V_SW
9	GND	GND	GND
10	+3V3_SW	+3V3_SW	+3V3_SW
11	GND	GND	GND
12	+1V8_SW	+1V8_SW	+1V8_SW
13	+12V	+3V3	+1V8
14	GND	GND	GND
15	DUT_OPTO_4C	+5V	I2C_SIB_3V3_SCL
16	DUT_OPTO_3C	GND	I2C_SIB_3V3_SDA
17	DUT_OPTO_2C	MIB_VIO	DUT_OPTO_2E
18	DUT_OPTO_1C	GND	DUT_OPTO_1E
19	DUT_RST	DDT_CS	I2C_MIB_VIO_SCL
20	DUT_PWR	DDT_SCK	I2C_MIB_VIO_SDA
21	GND	DDT_MISO	GND
22	DDT_GPIO_9	DDT_MOSI	SIB_UART1_CTS
23	DDT_GPIO_8	GND	SIB_UART1_RTS
24	DDT_GPIO_7	SIB_USB_H2_DM	SIB_UART1_TX
25	DDT_GPIO_6	SIB_USB_H2_DP	SIB_UART1_RX
26	GND	GND	GND
27	DDT_GPIO_5	SIB_USB_H1_DM	SIB_UART3_TX
28	DDT_GPIO_4	SIB_USB_H1_DP	SIB_UART3_RX
29	DDT_GPIO_3	GND	GND
30	DDT_GPIO_2	DDT_CAN_L	SIB_UART4_TX
31	DDT_GPIO_1	DDT_CAN_H	SIB_UART4_RX
32	GND	GND	GND

Header orientation

When using hardware design tools, the model for the SIB header is labeled the over way around!

Software usage

Optocouplers

Some optocouplers are available to toggle on and off virtual buttons. The buttons can be controlled with:

laacli button 1 on
laacli button 1 off

The different buttons are:

DUT_OPTO_1C and DUT_OPTO_1E: virtual button 1
DUT_OPTO_2C and DUT_OPTO_2E: virtual button 2
DUT_RST: reset button
DUT_PWR: power button

Unused pins

DUT_OPTO_3C and DUT_OPTO_4C are not used.

Power rails

The power pins, flagged with _SW, are managed power rails that can be controlled by laacli:

laacli power 12v on
laacli power 12v off
laacli power 12v reset

The header provides 4 power rails: 1v8, 3v3, 5v and 12v.

Serials

The header provides 3 set of serials:

SIB_UART1 as /dev/ttycmx0: DUT serial with hardware flow control
SIB_UART3 as /dev/ttycmx2: LAA serial
SIB_UART4 as /dev/ttycmx3: DUT serial

SIB_UART4 is also available via telnet:

telnet localhost 2000

USBs

The header provide 2 USB ports that are always on at:

SIB_USB_H1_DM and SIB_USB_H1_DP
SIB_USB_H2_DM and SIB_USB_H2_DP