Phytec kitCON-161CS, Hardware Manual

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kitCON-161CS/JC/JI
32 
PHYTEC Meßtechnik GmbH 1999 L-356e_2
The following figure shows Port P0, the function of the pins during
reset and how they can be changed (either with DIP-Switch S3 or
with optional resistors). The shaded pins are fixed and must not be
changed with DIP-Switch S3.
Function of Port P0 during System Reset (High-Byte)
Bit H7 H6 H5 H4 H3 H2 H1 Bit H0
CLKCFG
S3 switch 6, 7 and 8
SALSEL
S3 switch 4 and 5
CSSEL
S3 switch 2, 3
WRC
0
Function of Port P0 during System Reset (Low-Byte)
Bit L7 L6 L5 L4 L3 L2 L1 Bit L0
BUSTYP
1 0
R BSL
S3 switch 1
R R ADP
R3
EMU
R4
Reserved pins must remain high in order to ensure proper operation
The configuration of these pins must not be changed
The following sections contain a more detailed description of the con-
figuration done with DIP-Switch S3.
4.12.1 Boot-Switch S3 (switch 1)
The C161 houses an on-chip Bootstrap Loader that can be activated
with switch 1 of DIP-Switch S3. The Bootstrap Loader is started if
pin 4 of port P0 is low during reset. This is accomplished by turning
ON switch 1 of DIP-Switch S3.
Boot Mode S3 switch 1
Bootstrap mode ON*
normal Program Execution OFF
•
= Default
-Setting