OMICROM FT
SERVICE MANUAL
21 September 1998
3.4
3.3.2. Base board (P000PLAC07 Internal Code)
The function of the jumpers in this board are:
1) Jumpers J1 and J2 are used to select the operation mode of 68HC11
microcontroller.
J1
J2
Function
Open
Open
Expanded multiplexed mode - Standard
Open
Closed
Special test mode
Closed
Open
Single chip mode
Closed
Closed
Special bootstrap mode
2) Jumpers J3 and J4 are used to select the addressing of the external
RS232.
J3
J4
Function
Open
Open
RS232 interface from main board
(P000PLAC04 board) - Standard
Closed
Closed
RS232 interface from a measurement
board (only valid when there is only one
measurement board installed)
J3,J4
J1,J2
Содержание Omicrom FT
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