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CHAPTER 12 External Interfaces
Table 12.7 IEEE1284-A Connector Terminal Distribution (Continued)
Pin # Source Compatible Nibble Byte
15 P
16 N
17 P
18 Signal Ground (nStrobe)
19 Signal Ground (Data 1 and Data 2)
20 Signal Ground (Data 3 and Data 4)
21 Signal Ground (Data 5 and Data 6)
22 Signal Ground (Data 7 and Data 8)
23 Signal Ground (Busy and nFault)
24 Signal Ground (PError, Select, and nAck))
25 Signal Ground (nAutoFd, nSelectIn, and nInit)
NFault
NInit
NSelection
nDataAvail
nInit
1284 Active
* Data signals can be read by some but not all host devices.
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