AT7601F datasheet(5/35 Pages) AME

5 / 35 page

AME, Inc.

AT7601F

Printer Port Controller

Rev. B.02

Note

Data Port

Printer Status Port

Printer Control Port

EPP Address Port

2,3

EPP Data Port 0

2,3

EPP Data Port 1

2,3

EPP Data Port 2

2,3

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#

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

Interrupt, Active high; Peripheral generates an interrupt to

the host.

BUSY

Wait#

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.

Paper End; Same as SPP mode.

SLCT

Select

Printer selected status; Same as SPP mode.

AFD

DataSTB#

Data Strobe ; Active low; it indicates a data read or write

operation.

ERR#

Error#

Error; Same as SPP mode.

INIT#

Active low; The EPP device is reset to its initial operating

mode.

SLIN#

AddrSTB#

Address Strobe ; Active low; It indicates an address read

or write operation.

Table 5. EPP Pin Descriptions

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