SBE HighWire HW400c/2 User Manual

 

HighWire HW400c/2 User Reference Guide Rev 1.0 

Table 7 describes the pin out of J8 and J9. Some of the pins listed are for Factory use 
only.  
 

 

1 

O 

N/C. The “o” indicates pin one 

2 

SCL 

TWSI IPMB SCL, for Factory use only  

3 

none 

N/C. Just below the “J8” header title.  

4 

SDA 

TWSI IPMB SDA, for Factory use only 

5 

NMI 

Ground. Used in conjunction with J9, 1, holds 
microprocessor Non Maskable Interrupt (NMI) active. 
When used with optional reset/NMI cable toggles NMI. 

J8 

6 

(-) 

Ground. Used with TWSI cable, for Factory use only 

1 

O 

Non Maskable Interrupt (NMI). The “o” indicates pin 
one. Used in conjunction with J8, 5, holds 
microprocessor Non Maskable Interrupt (NMI) active. 

2 none 

N/C 

3 

none 

Reset to the microprocessor. Used in conjunction with 
J9, 5, holds microprocessor in reset. When used with 
optional reset/NMI cable toggles reset line. 

4 

I2C2 

Select I2C2, Used with J9-6 to select I2C3 mode. For 
Factory use only. 

5 

RST 

Ground. In conjunction with J9-3 to hold microprocessor 
in reset.  

J9 

6 

I2C2 

Ground. Used with J9-4 to select I2C3 mode. For 
Factory use only.  

 

 
 

 
 

Bottom row of J8 and J9 reserved for Factory use only.

October 10, 2006 

Copyright 2006, SBE, Inc. 

Page 

15