參數(shù)資料
型號: AX88196
廠商: Electronic Theatre Controls, Inc.
英文描述: 10/100BASE 3-in-1 Local CPU Bus Fast Ethernet Controller with Embedded SRAM
中文描述: 一個10/100Base 3合1本地CPU總線快速以太網(wǎng)控制器與嵌入式靜態(tài)存儲器
文件頁數(shù): 22/42頁
文件大?。?/td> 594K
代理商: AX88196
AX88196 Local CPU BUS MAC Controller
ASIX ELECTRONICS CORPORATION
22
4.14 SPP Data Port Register (SPP_DPR) Offset 18H (Read/Write)
FIELD
NAME
7:0
DP
Printer Data Port
DESCRIPTION
4.15 SPP Status Port Register (SPP_SPR) Offset 19H (Read)
FIELD
NAME
7
/BUSY
Reading a ‘0’ indicates that the printer is not ready to receive new data.
6
/ACK
Reading a ‘0’ indicates that the printer has received the data and is ready to accept new data.
5
PE
Reading a ‘1’ indicates that the printer is out of paper.
4
SLCT
Reading a ‘1’ indicates that the printer has power on.
3
/ERR
Reading a ‘0’ indicates that there is an error condition at the printer.
2:0
-
Reserved
DESCRIPTION
4.16 SPP Command Port Register (SPP_CPR) Offset 1AH (Read/Write)
FIELD
NAME
7:6
-
Reserved
5
/DOE
Seting to ‘0’ enable print data output to printer. Default sets to ‘1’.
4
IRQEN IRQ enable : printer port interrupt is not supportted.
3
SLCTIN Seting to ‘1’ selects the printer.
2
/INIT
Seting to ‘0’ initiates the printer
1
ATFD
Seting to ‘1’ causes the printer to automatically feed one line after each line is printed.
0
STRB
Seting a low-high-low pulse on this register is used to strobe the print data into the printer.
DESCRIPTION
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