Signals
287
Signals
Table 11 lists each of the signals associated with the corresponding
pins on the 1284 interface. Descriptions of the signals follow.
Table 11. 1284 Signals
Pin
Source of Data
Type of Mode
Compatible
Nibble
Byte
1
Host
nStrobe
HostClk
Host/Clk
2
Host/Printer
Data 1 (LSB)
3
Host/Printer
Data 2
4
Host/Printer
Data 3
5
Host/Printer
Data 4
6
Host/Printer
Data 5
7
Host/Printer
Data 6
8
Host/Printer
Data 7
9
Host/Printer
Data 8 (MSB)
10
Printer
nAck
PtrClk
PtrClk
11
Printer
Busy
PtrBusy
PtrBusy
12
Printer
PError
AckDataReq
AckDataReq
13
Printer
Select
Xflag
Xflag
14
Host
nAutoFd
Host Busy
HostAck
15
Not Defined
16
Logic Grid
17
Chassis Grid
18
Printer
Peripheral Logic High
Содержание P5005B
Страница 10: ...Table of Contents 10...
Страница 18: ...Chapter 1 Printer Overview 18...
Страница 62: ...Chapter 2 Set The Top Of Form 62...
Страница 88: ...Chapter 3 Operational Procedures 88...
Страница 296: ...Chapter 5 RS 232 And RS 422 Serial Interfaces 296...
Страница 336: ...Appendix C 336...
Страница 340: ...Appendix D Federal Communications Commission FCC Statement 340...
Страница 365: ......