1ª 10155 ES 9 - 2009
37
15.6
keyboard control board
The keyboard control board, with
Flash
technology, is located in the panel keyboard assembly; it
controls the proximity keyboard boards.
Its principle technical characteristics are:
•
Uses a microcontroller made by Motorola MC9S08AC60 (8 bits) with 2 Kbytes of
internal RAM memory.
•
Works at 40 MHz.
•
Uses 5 Vdc.
•
The programme memory that the machine has is Flash type with capacity of 60
Kbytes. The access to memory is in 8 bits.
•
The software is always loaded from the control flash board.
JP1:
port of communication to electronics
JP2:
auxiliary port of communication
JP3:
connection loom refund
JP4:
connection loom infrared
JP6:
connection to control flash board
JP7:
connection to keyboard board from 1
to 4
JP8:
connection to keyboard board from 5
to 8
JP9:
connection to programming handset
JP10:
connection green and white LEDs
JP11:
future use
JP12:
connection information display.
JP13:
power supply board (+5V. +12V.
GND)
Summary of Contents for STEP 41
Page 28: ...1 10155 ES 9 2009 28 Below are the technical characteristics...
Page 29: ...1 10155 ES 9 2009 29...
Page 57: ...1 10155 ES 9 2009 57...
Page 58: ......