參數(shù)資料
型號(hào): AT7601FG
廠(chǎng)商: AME, Inc.
英文描述: Printer Port Controller
中文描述: 打印機(jī)端口控制器
文件頁(yè)數(shù): 5/35頁(yè)
文件大?。?/td> 195K
代理商: AT7601FG
AME, Inc.
5
AT7601F
Printer Port Controller
Rev. B.02
A2
A1
A0
Register
Note
0
0
0
Data Port
1
0
0
1
Printer Status Port
1
0
1
0
Printer Control Port
1
0
1
1
EPP Address Port
2,3
1
0
0
EPP Data Port 0
2,3
1
0
1
EPP Data Port 1
2,3
1
1
0
EPP Data Port 2
2,3
1
1
1
EPP Data Port 3
2,3
Table 6. EPP Pin Descriptions
Note 1: These registers are in all mode
Note 2: These registers are in EPP mode
Note 3: For EPP mode, IOCHRDY must be connect to the ISA BUS
5-2 Enhanced Parallel Port(EPP)
SPP Name
EPP Name
I/O Type
EPP Description
STB#
Write#
O
Active low; It indicates a write operation.
PD[0:7]
PD [0: 7]
I/O
Bi-directional EPP byte wide address and data bus.
ACK#
INTR
I
Interrupt, Active high; Peripheral generates an interrupt to
the host.
BUSY
Wait#
I
Active low; it is handshake signal. When low, it indicates
that the device is ready for next transfer, when high, it
indicates that the data transfer is complete.
PE
PE
I
Paper End; Same as SPP mode.
SLCT
Select
I
Printer selected status; Same as SPP mode.
AFD
DataSTB#
O
Data Strobe ; Active low; it indicates a data read or write
operation.
ERR#
Error#
I
Error; Same as SPP mode.
INIT#
INIT#
O
Active low; The EPP device is reset to its initial operating
mode.
Address Strobe ; Active low; It indicates an address read
or write operation.
SLIN#
AddrSTB#
O
Table 5. EPP Pin Descriptions
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