PACS1284-06 Datasheet, PDF (4/5 Pages) California Micro Devices Corp – P/ACTIVE IEEE 1284 ECP/EPP TERMINATION NETWORK

CALIFORNIA MICRO DEVICES
PACS1284-06
Table 2 defines the signals for the three connectors.
PIN
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1284-A
25-PINDSUB
STROBE
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
ACK
BUSY
PError
Select
AUTOFD
FAULT
INIT
Selectin
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
1284-B
36-PIN CHAMP
STROBE
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
ACK
BUSY
PError
Select
AUTOFD
Not Defined
Logic Ground
Chassis Ground
Peripheral Logic
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
INIT
FAULT
Not Defined
Not Defined
Not Defined
Selectin
1284-C
36-PIN HIGH
DENSITY
BUSY
Select
ACK
FAULT
PError
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
INIT
STROBE
Selectin
AUTOFD
Host Logic High
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Not Required
Table 2. IEEE 1284 Connector Pinouts.
When connecting a 1284-A host to a 1284-B peripheral the “Peripheral Logic High” signal is not used. Similarly, when
a 1284-A host is connected to a 1284-C peripheral the “Peripheral Logic High” and “Host Logic High” are not used.
These two signals are optionally used to detect a “Power Off” or “Cable Disconnect” state for host and peripheral
respectively.
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