Oki Data CONFIDENTIAL42113931TH Rev.1 13 /2.1.4 Interface Control(1) Parallel InterfaceThe parallel data input from the host to the interfaced SOC is latched to its internal registerat the falling edge of the STROBE-N signal.At the same time, the SOC sets the BUSY signal to the high level to inform the host thatthe data is being processed, and outputs the RXD signal to inform the SOC of datareception. The data is read upon receiving the RD-N signal from the SOC.When the data processing ends, the BUSY signal is set to off and the ACK-N signal insent to request the next data. When reception is impossible because the buffer is full, theBUSY signal is sent to request stopping of data transmission.* The STROBE-based timing for the BUSY signal is adjustable from the Maintenancemenu.ACK signal timing and BUSY signal timing can be adjusted from the Maintenance menu.Receive DataSOCIEEE1284DRIVER ICBSYACKNSTBSTB-NBSY-PACK-NReceive DataCN1BUSY-PACK-NSTROBE-NReceive Data1 to 8STROBE-NBUSYACK-NRXD-N2~8μs500ns max.
