Texas Instruments TRF6900, User Manual

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Standard PC Parallel Port
2-11
Evaluation Board
2.5 Standard PC Parallel Port
A standard PC parallel port is configured as follows:
1 13
14 25
View Is Looking at
Connector Side of
DB-25 Male Connector
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Description
Strobe
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
ACK
Busy
Paper Empty
Select
Auto Feed
Error
Initialize Printer
Select Input PC Output
PC Output
PC Output
PC Output
PC Output
PC Output
PC Output
PC Output
PC Output
PC Input
PC Input
PC Input
PC Input
PC Output
PC Input
PC Output
PC Output
Pin Assignments
Note: 8 Data Outputs
4 Misc Other Outputs
5 Data Inputs
Note: Pins 18 – 25 are
Ground
Note: The TRF6900 EVM uses pins 2 – 7 for signals from the PC to the EVM. Pins 11 and 12 are
used for signals from the EVM to the PC.