Citizen BD2-3890 User Manual download pdf (Page 17)

BD2-3880/3890 User’s Manual

6.4 Timing Chart (Compatibility Mode)

(1) Data Input and Printing Timing

6.5 Data Receiving Control

When BUSY signal is “LOW”, data from the host can be received. When it being “HIGH”, data

cannot be received.

6.6 Buffering

This control board incorporates 2K byte buffer.

Therefore, big data can be buffered in input buffer, and the host side can be released immediately.

T1, T2, T3 : 0.5 µs (MIN)

T4 : 270 ns (MAX)

T5 : 2.3 µs (TYP)

T6 : 500 ms (MIN) *On supplying power

SupplPower

DATA

nSTB

BUSY

nACK

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Citizen BD2-3890 User Manual Page 17