Jumper And Resistor Settings; J1 - Bootstrap Loader / Socket Jumper; J2 - Realtime Clock (Rtc) Calibration Output; J1 - Bootstrap Loader / Socket Jumper Settings - Kontron PEP CP321 Manual

CP321
4. Configuration
4.1

Jumper and Resistor Settings

Please see Figures 1-3 and 1-4 in Chapter 1 to view the positions of the jumpers and resistors
on the board.
4.1.1

J1 - Bootstrap Loader / Socket Jumper

The jumper J1 is used to select the memory position from which the CP321 fetches its boot
code. It establishes the address location of the onboard Flash window and the memory expan-
sion socket 1 (DIL600, 32-pin). Refer to the Memory Configuration Register chapter for further
information.
Note...
The MPC8245 initially fetches its boot code from address
0xFFF0 0100
Table 4-1: J1 - Bootstrap Loader / Socket Jumper Settings
J1
Open CP321 fetches boot code from
Closed CP321 fetches boot code from
4.1.2

J2 - Realtime Clock (RTC) Calibration Output

J2 is a test point for calibration measurement of the frequency of the RTC and is as such not a
jumper. Refer to the datasheet of the ST M41T56 for further information on the use of this output
signal.
Warning!
At NO TIME is J2 to be jumpered (short circuited). This is a test point
and operation with a jumper installed will cause damage to the RTC.
ID 24977, Rev. 02
DESCRIPTION
onboard Flash
socket 1
© 2003 Kontron Modular Computers GmbH
ADDRESS ASSIGNMENT
Socket 1:
Onboard Flash Window:
Socket 1:
Onboard Flash Window:
Configuration
0xFFF8 0000 - 0xFFFF FFFF
0xFFF0 0000 - 0xFFF7 FFFF
0xFFF0 0000 - 0xFFF7 FFFF
0xFFF8 0000 - 0xFFFF FFFF
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