Io
SENSOR
Section 6 SMT-200 Technical
SMT-200 Operations and Technical Manual 2.00/R1
79
(signaled by -BUSY going high), the data is available on the parallel outputs. The data bus size is 8
bits so the 16 bit word is read in 2 parts, high byte and low byte. The particular byte to read is
determined by A0 which is connected to the BYTE input. PB1 of the PPI can be used to switch the
analogue circuit within the chip of to conserve power when not in use.
6.13 SMT-200
Interconnection
Note
: The power connector (J5) on the PC/104 board is not used. Power for the this board is derived
from the 5 V regulator on the main board and fed to the PC/104 via JP3.
Bendix Connector
JP6
JP2
JP1
JP3
SMT-200 main Board
PC/104 Board
Battery Connector (12v)
Top view
Bottom view
JP8
Buzzer
LCD Display
Keyboard
JP4