Alberici AL66 FG ARM Pulse, Руководство оператора

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The connector is pin-to-pin compatible with
the one on the AL66 FG coin selectors
7. Driving SPI peripheral devices
To attribute the appropriate sorting commands to the iS1 and iS4 SPI SORTERS , please refer to the output paths shown
below, and to the directions given in the section “ SPI DISPLAY AD01 SERIAL PROTOCOL ”.
SPI Display AD01: serial protocol
The Alberici display AD01 consists of standard 16x2 characters LCD module with parallel interface, background light,
equipped with a small controller pcb for SPI communication with the host. It has been designed to be used as a display
accessory for AL66 FG coin selectors, but it can be used with any other host capable to interface through SPI.
7.1 Communication specifications
Slave mode operation
8 bit rate
Maximum Clk freq. = 2 MHz
Clk phase = 0; Transfer on the first clock edge
Clk polarity = 0; Transfer on clock transition low to high
7.1.1 Clock frequency
Clock frequency is not critical but if it is to low thandisplay will blink whennewdata or refresh of the olddata is done.
Maximum frequency is limited with connection cable capacity and should be max 2 MHz for short connection(less
than 300 mm ).Recommended frequency is above 100 KHz till 1 MHz.
7.1.2 Power supply
The background light of the display must be powered by 8-26 Vdc . The logic circuit must be powered by 5 Vcd.
See connector in section 7.1.3.
7.1.3 Connection (SPI Interface)