AX88796LF ASIX Electronics, AX88796LF Datasheet - Page 39

• Manufacturer Part Number: AX88796LF
• Description: 3-in-1 Local CPU Bus Fast Rthernet Controller
• Manufacturer: ASIX Electronics

5.1.17 SPP Data Port Register (SPP_DPR) Offset 18H (Read/Write)
5.1.18 SPP Status Port Register (SPP_SPR) Offset 19H (Read)
5.1.19 SPP Command Port Register (SPP_CPR) Offset 1AH (Read/Write)
FIELD
FIELD
FIELD
7:0
2:0
7:6
7
6
5
4
3
5
4
3
2
1
0
AX88796 L
SLCTIN Setting to ‘1’ selects the printer.
NAME
NAME
NAME
IRQEN IRQ enable : printer port interrupt is not supported.
/BUSY Reading a ‘0’ indicates that the printer is not ready to receive new data.
ATFD
SLCT
STRB
/ACK
/DOE
/INIT
/ERR
DP
PE
-
-
Printer Data Port. Default is in input mode. Write /DOE of SPP_CPR register to logic “0”
to enable print data output to printer as bi-directional mode.
The register reflects the inverted value of BUSY pin.
Reading a ‘0’ indicates that the printer has received the data and is ready to accept new data.
The register reflects the value of /ACK pin.
Reading a ‘1’ indicates that the printer is out of paper.
The register reflects the value of PE pin.
Reading a ‘1’ indicates that the printer has power on.
The register reflects the value of SLCT pin.
Reading a ‘0’ indicates that there is an error condition at the printer.
The register reflects the value of /ERR pin.
Reserved
Reserved
Setting to ‘0’ enables print data output to printer. Default sets to ‘1’.
/SLIN pin reflects the inverted value of this signal.
Setting to ‘0’ initiates the printer
/INIT pin reflects the value of this signal.
Setting to ‘1’ causes the printer to automatically feed one line after each line is printed.
/ATFD pin reflects the inverted value of this signal.
Setting a low-high-low pulse on this register is used to strobe the print data into the printer.
/STRB pin reflects the inverted value of this signal.
3-in-1 Local Bus Fast Ethernet Controller
39
DESCRIPTION
DESCRIPTION
DESCRIPTION
ASIX ELECTRONICS CORPORATION