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Chapter 3 Hardware

32 Reference Manual CoreModule 435

Note: The shaded table cells denote power or ground.

Serial Peripheral Interface (SPI)

The CoreModule 435 provides a 16Mbit SPI Flash controller (U6) for data storage. An SPI header (J19)

provides user access to the SPI Flash controller through an external SPI Bus.

Table 3-14 describes the pin signals of the SPI interface, which uses a single-row, 6-pin header with 0.100"

(2.54mm) pitch.

Note: The shaded table cells denote power or ground.

Low Pin Count Interface (LPC)

The LPC interface provides expansion for custom LPC devices.

Table 3-15 describes the pin signals of the LPC interface, which uses a 10-pin female header with 2 rows,

odd/even sequence (1, 2), and 0.050" (1.27mm) pitch.

37 HSYNC Horizontal Sync – This signal is used for the digital horizontal sync output to the

CRT. Also used (with VSYNC) to signal power management state information to

the CRT per the VESA™ DPMS™ standard.

38 VSYNC Vertical Sync – This signal is used for the digital vertical sync output to the CRT.

Also used (with HSYNC) to signal power management state information to the

CRT per the VESA™ DPMS™ standard.

AGNDR Analog Ground for Red

40 RED Red – This pin provides the Red analog output to the CRT.

AGNDG Analog Ground for Green

42 GREEN Green – This pin provides the Green analog output to the CRT.

AGNDB Analog Ground for Blue

44 BLUE Blue – This pin provides the Blue analog output to the CRT.

Table 3-14. SPI Interface Pin Signals (J19)

Pin # Signal Description

1 EXT_CS SPI Chip Select

2 EXT_CLK SPI Clock

3 EXT_DO SPI Data Out

4EXT_DISPI Data In

V.3.3 +3.3 Volts Power

GND Ground

Table 3-15. LPC Interface Pin Signals (J20)

Pin # Signal Description

V.3.3 +3.3 Volts Power

GND Ground

3 DRQ DMA Request

4 AD3 Command, Address, and Data 3

5 SERIRQ Serial Interrupt Request

6 AD2 Command, Address, and Data 2

Table 3-13. Video Interface Pin Signals (J11) (Continued)

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 57 58

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