FabiaTech Corporation
69
Bit 7:
This signal may become active during data entry, when the printer is off-line
during printing, or when the print head is changing position or in an error
state. When Bit 7 is active, the printer is busy and cannot accept data.
Bit 6:
This bit represents the current state of the printer’s ACK signal. A 0 means the
printer has received the character and is ready to accept another.
Normally, this signal will be active for approximately 5 microseconds before
receiving a BUSY message stops.
Bit 5:
A 1 means the printer has detected the end of the paper.
Bit 4:
A 1 means the printer is selected.
Bit 3:
A 0 means the printer has encountered an error condition.
Printer Control Latch & Printer Control Swapper
The system microprocessor can read the contents of the printer control latch by
reading the address of printer control swapper. Bit definitions are as follows:
X
X
1
2
3
4
5
6
7
0
STROBE
AUTO FD XT
INIT
SLDC IN
IRQ ENABLE
DIR(write only)
NOTE: X represents not used.
Summary of Contents for Low Power FB2652
Page 5: ...v DMA Controller 2 63 Serial Ports 64 Parallel Ports 68 Appendix 71 Dimension 71...
Page 6: ...vi...
Page 12: ...FabiaTech Corporation 6...
Page 26: ...FabiaTech Corporation 20...
Page 52: ...FabiaTech Corporation 46...
