6-22
Computer Group Literature Center Web Site
Jumpers, Connectors, and LEDs
6
Notes
1. Power Fail Sense# is intended for input and sends a NMI to
the processor when voltage falls below 0.8V. The signal is
filtered for noise.
2. +3.3V, +5V,
−
12V,
−
5V, and GND should only be used for
low-power applications.
LCD & SPI Connector J27 (MBX821)
On MBX821 models, a 24-pin dual-row header supplies the interface
between the MBX821’s LCD controller and the panel. The pin
assignments for the LCD connector are listed in the following table.
Table 6-13. LCD & SPI Connector Pin Assignments
Pin #
Signal
Signal
Pin #
1
GND
Reserved
2
3
GND
SHIFT/CLK
4
5
GND
LOAD/HSYNC
6
7
+12V
FRAME/VSYNC
8
9
+5V
LCD_AC/OE
10
11
+3.3V
LD0
12
13
LD1
LD2
14
15
LD3
LD4
16
17
LD5
LD6
18
19
LD7
LD8
20
21
SPIMISO
SPIMOSI
22
23
SPICLK
SPISEL
24
Summary of Contents for MBX Series
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