Epson ColorPage EPL-C8000 User Manual page 185

nInit/nReverseRequest
Compatibility mode:
Negotiation phase:
Reverse data transfer
phase:
ECP mode:
nFault/DataAvail/nPeriphRequest
Compatibility mode:
Negotiation phase:
Reverse data transfer
phase:
Reverse final phase:
ECP mode:
When a low signal is detected, the printer is
deemed to be BUSY until the low signal is
released.
Always high.
Always high.
Low when switching to reverse direction.
The peripheral device has permission to
drive the data signal only when this signal is
low and 1284active is high.
Low signal indicates that an error occurred.
This signal is set high in order to authorize
1284 compatibility. In nibble mode, after the
host sets HostBusy (nAutoFd) high, this
signal is set low in order to indicate that the
transmission data is ready.
This signal is set low in order to indicate to a
nibble mode host that the transmission data
is ready. Afterwards, this signal serves as
nibble data bit 0 and then 4.
Indicates whether or not the data is valid.
This signal is set low to request
communications with the host. Valid in both
forward and reverse direction.
Technical Specifications
A
A-13