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Technical data
Parallel port
The parallel port supports three transfer modes: SPP, EPP and ECP. SPP mode (standard parallel
port) is the mode traditionally used to drive a printer. EPP (Enhanced Parallel Port) and ECP
(Extended Capabilities Port) modes are transfer modes that allow transfer rates of 2 and 2.4
Mbytes/s. These modes will only work in connection with peripheral devices which specifically
support them. Cases where these transfer modes are used are, for example, interface conversions
between Parallel and SCSI or Parallel and IDE. The pinouts are different in all three modes.
Pinout in SPP mode (Standard Parallel Port)
Pos.
Signal name
1
STROBE
2-9
Data Lines 0-7
10
ACKNOWLEDGE
11
BUSY
12
PE
13
SELECT
14
AUTO
15
ERROR
16
INIT
17
SELECT IN
18-25
GROUND
Pinout in EPP mode (Enhanced Parallel Port)
Pos.
Signal name
1
Write
2-9
Data Lines
10
Intr
11
Wait
12
reserved
13
reserved
14
DStrb
15
reserved
16
reserved
17
AStrb
18-25
Ground
66
1
13
14
25
Meaning
Data strobe
Data lines 0-7
Data acknowledgement
Not available
End of paper
Select device
Automatic new line
Device error
Reset/Initialize
Select printer
Ground
Meaning
Output
Input/output
Input
Input
-
-
Output
-
-
Output
-
Port assignment
A26391-K82-Z101-3-7619
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