Texas Instruments TRF4900, Руководство пользователя, Страница: 23 / 45

Standard PC Parallel Port
2-12
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 TRF4900 EVM uses pins 2–9 for signals from the PC to the EVM.