
Chapter 3 Hardware
22 Reference Manual MiniModule SIO
LPC (Low Pin Count) Interface
The LPC interface provides expansion for custom LPC devices that require high-speed buses. The LPC
header consists of 10 pins with 2 rows, odd/even (1, 2) pin sequence, and 0.050" (1.27mm) pitch. Table 3-8
describes the pin signals of the LPC interface.
Note: The shaded area denotes power or ground. Signals marked with # indicate Active Low.
Table 3-8. LPC Interface Pin/Signal Descriptions (J21)
Pin # Signal Description
1
V. 3 . 3 + 3 . 3 Vo l t s P o w e r
2
GND Ground
3 NC Not Connected
4 AD3 Command, Address, and Data 3
5 RESET* Reset Signals - reset the connected LPC device
6 AD2 Command, Address, and Data 2
7 CLK_LPC LPC Clock
8 AD1 Command, Address, and Data 1
9 FRAME* Frame Signals - indicate start of new cycle or termination of broken cycle
10 AD0 Command, Address, and Data 0
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