SBE HW400c/2 用户手册
HighWire HW400c/2 User Reference Guide Rev 1.0
Table 7. J8 and J9 pin out
Header Pin Label
Usage
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.
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.
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.
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.
Factory use only.
5
RST
Ground. In conjunction with J9-3 to hold microprocessor
in reset.
in reset.
J9
6
I2C2
Ground. Used with J9-4 to select I2C3 mode. For
Factory use only.
Factory use only.
Figure 6. J8 and J9 with optional Reset/NMI cable
Bottom row of J8 and J9 reserved for Factory use only.
October 10, 2006
Copyright 2006, SBE, Inc.
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