Samsung LNB50 User Manual download pdf (Page 75)

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Reset Configuration

SW13 and SW15 are used to define the state of the RESCON register bits AD15–

AD0. The RESCON register identifies a bit as a logic High when a switch segment

is in the ON position. For details, see Figure 2-24 on page 2-46 or sheet 3 of the

main board schematics included in your kit.

The RESCON register provides a way to make design-specific hardware

configuration information available to software. This information is latched into

the RESCON register from the state of AD[0..15] during reset. The Am186CC/

CH/CU microcontroller’s weak internal pulldowns default AD[0..15] Low during

reset. SW13 and SW15 can be used to set individual bits AD[0..15] High by setting

the appropriate switch segment to the ON position. Figure 2-23 shows the RESCON

Figure 2-23. RESCON Register Bits

• Customer Development Platform: Identifies if the board is a CDP.

• Board ID: Unique board identifier that is used to determine what features are

available to the software.

• 0: Bits are reserved for future use.

• Panic Bit: Used by E86MON software to boot in a “safe mode”.

• TIP: Identifies the TIP board as being present in the system.

• Board Configuration: Identifies particular population option for the board.

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Samsung LNB50 User Manual Page 75