Epson 9600 Service Manual - Page 94

ECP Mode

Page 94 highlights

EPSON Stylus Pro 7600/9600 1.6.1.3 ECP Mode SPECIFICATION † Transmission mode: IEEE-1284ECP mode † Synchronization: IEEE-1284 specification † Handshaking: IEEE-1284 specification † Signal level: TTL compatible (IEEE1284Level 1 device) † Data trans. timing: IEEE-1284 specification † Extensibility Request: The printer responds affirmatively when the extensibility request values are 10H or 04H, that mean, „ 10H Request ECP Mode Reverse Channel Transfer. „ 14H Request Device ID; Return Data Using ECP Mode Rev Channel Transfer. † Device ID: „ When IEEE1284.4 is valid • (Character strings, depending on ) • MFG: EPSON; • CMD: ESCPL2,BDC,D4; • MDL: ; • CLS: PRINTER; • DES: EPSONT;(: space) „ When IEEE1284.4 is not valid • (Character strings, depending on ) • MFG: EPSON; • CMD: ESCPL2,BDC; • MDL: ; • CLS: PRINTER; • DES: EPSONT; (: space) Revision A CONNECTOR PIN ASSIGNMENT AND SIGNALS Table 1-56. Connector Pin Assignment and Signals (ECP) Pin Return No. GND Pin Signal Name In/Out* Function 1 19 HostClk Data or address information are transferred from a host to a In printer. 2 20 DATA0 In 3 21 DATA1 In 4 22 DATA2 5 23 DATA3 6 24 DATA4 7 25 DATA5 In In The DATA0 through DATA7 signals represent data bits 0 to 7, respectively. Each signal is at high level when data is In logical 1 and low level when data is logical 0. In 8 26 DATA6 In 9 27 DATA7 In 10 28 PeriphClk Out Data is transferred from a printer to a host. 11 29 PeriphAck A printer uses this signal for a flow control of forward direction. Also this signal offers the data bit 9 that use it to Out judge whether or not it is information command information or data to be output on the data signal of reverse direction. 12 28 nAckReverse Out A printer does drive to Low and approve nReverseRequest. 13 28 Xflag Out X-flag signal and reverse channel transfer data bit 1 or 5. 14 30 HostAck A host uses this signal for a flow control of reverse direction. Also this signal offers the data bit 9 that use it to In judge whether or not it is information command information or data to be output on the data signal of forward direction. 31 30 nReverseRequest In This signal is made a low, to change a channel toward reverse. 32 29 nPeriphReques Out This signal uses to produce a host interrupt. 36 30 1284-Active In 1284 active signal. "HIGH" in ECP mode 18 -- PeriphLogic Out Always "HIGH". Pulled up to +5 V via 3.9 K ohm resistor. 35 -- +5V Out Always "HIGH". Pulled up to +5 V via 1.0 K ohm resistor. 17 16,33 19-30 15,34 -- Chassis GND -- GND -- NC -- Chassis GND. -- Signal GND. -- Not connected. Note "*": In/Out refers to the direction of signal flow from the printer's point of view. Product Description Interfaces 94

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EPSON Stylus Pro 7600/9600
Revision A
Product Description
Interfaces
94
1.6.1.3
ECP Mode
SPECIFICATION
Transmission mode:
IEEE-1284ECP mode
Synchronization:
IEEE-1284 specification
Handshaking:
IEEE-1284 specification
Signal level:
TTL compatible (IEEE1284Level 1 device)
Data trans. timing:
IEEE-1284 specification
Extensibility Request:
The printer responds affirmatively when the extensibility request values are 10H
or 04H, that mean,
10H Request ECP Mode Reverse Channel Transfer.
14H Request Device ID; Return Data Using ECP Mode Rev Channel
Transfer.
Device ID:
When IEEE1284.4 is valid
<xx><xx>
(Character strings, depending on <Model Name>)
MFG: EPSON;
CMD: ESCPL2,BDC,D4;
MDL: <Stylus Pro 7600-DYE/Stylus Pro 9600-DYE> ;
CLS: PRINTER;
DES: EPSON<SP>T<Stylus Pro 7600-DYE/Stylus Pro 9600-DYE>;(<SP>:
space)
When IEEE1284.4 is not valid
<xx><xx>
(Character strings, depending on <Model Name>)
MFG: EPSON;
CMD: ESCPL2,BDC;
MDL: <Stylus Pro 7600-DYE/Stylus Pro 9600-DYE>;
CLS: PRINTER;
DES: EPSON<SP>T<Stylus Pro 7600-DYE/Stylus Pro 9600-DYE>;
(<SP>: space)
CONNECTOR PIN ASSIGNMENT AND SIGNALS
Note
"*":
In/Out refers to the direction of signal flow from the printer's point of view.
Table 1-56.
Connector Pin Assignment and Signals (ECP)
Pin
No.
Return
GND Pin
Signal Name
In/Out*
Function
1
19
HostClk
In
Data or address information are transferred from a host to a
printer.
2
20
DATA0
In
The DATA0 through DATA7 signals represent data bits 0
to 7, respectively. Each signal is at high level when data is
logical 1 and low level when data is logical 0.
3
21
DATA1
In
4
22
DATA2
In
5
23
DATA3
In
6
24
DATA4
In
7
25
DATA5
In
8
26
DATA6
In
9
27
DATA7
In
10
28
PeriphClk
Out
Data is transferred from a printer to a host.
11
29
PeriphAck
Out
A printer uses this signal for a flow control of forward
direction. Also this signal offers the data bit 9 that use it to
judge whether or not it is information command
information or data to be output on the data signal of
reverse direction.
12
28
nAckReverse
Out
A printer does drive to Low and approve nReverseRequest.
13
28
Xflag
Out
X-flag signal and reverse channel transfer data bit 1 or 5.
14
30
HostAck
In
A host uses this signal for a flow control of reverse
direction. Also this signal offers the data bit 9 that use it to
judge whether or not it is information command
information or data to be output on the data signal of
forward direction.
31
30
nReverseRequest
In
This signal is made a low, to change a channel toward
reverse.
32
29
nPeriphReques
Out
This signal uses to produce a host interrupt.
36
30
1284-Active
In
1284 active signal. “HIGH” in ECP mode
18
--
PeriphLogic
Out
Always “HIGH”. Pulled up to +5 V via 3.9 K ohm resistor.
35
--
+5V
Out
Always “HIGH”. Pulled up to +5 V via 1.0 K ohm resistor.
17
--
Chassis GND
--
Chassis GND.
16,33
19-30
--
GND
--
Signal GND.
15,34
--
NC
--
Not connected.