
REV.-A
1.3.2
Serial Interface Specifications
Data Transmission Mode
serial
Synchronization
Asynchronous
Handshaking
(By
signal or X-ON/OFF Protocol
(Refer to Table 1-15 and Figure 1-9.)
Table 1-15. Serial Interface Handshaking
Signal
X-ON/OFF protocol
Description
MARK
X-OFF
When the number of bytes remaining in the input buffer
reaches 256 or less, the signal level goes to MARK, or
and X-OFF code is sent to the host computer. This
indicates that the printer is not ready to receive data.
SPACE
X-ON (DC1/11 H)
When the number of bytes remaining in the input buffer
reaches 528 or more, the signal level goes to SPACE, or
an X-ON code is sent to the host computer. This indi-
cates that the priter is ready to receive data.
(REV) Signal
I
M A R K
- - - - - - - - - - -
SPASE (
,
Input Buffer Vacant Area
1
1
X-ON
X-OFF
X-ON/X-OFF Protocol
Figure 1-9.
Interface Handshaking
Word Length
Start bit:
Data bits:
Parity:
Stop bits:
Bit Rate
Logic Level
8
Odd, Even, or none
1 bit or more
300, 1200, 9600, or 19200 BPS
EIA level, IMARK: logical 1 (–3- –27 V)
: logical O
+27 V)
1-16
Содержание LQ-1060
Страница 1: ...EPSON TERMINAL PRINTER L Q 8 6 0 1 0 6 0 TECHNICAL MANUAL ...
Страница 5: ...REVISION TABLE REVISION DATE ISSUED I CHANGE DOCUMENT I I 1st issue I v ...
Страница 68: ...cc o REV A N N n 1 cc b I al cc u co n4 2 1 Figure 2 14 Main Switching 2 21 ...
Страница 79: ...REV A Table 2 20 State of Module 1 1 I W stay E H H L H d O s H H 4 2 32 ...
Страница 203: ...Figure 5 6 MONPS MONPSE Board Voltage Waveforms 5 17 ...
Страница 204: ...REV A Fiaure 5 6 MONPS MONPSE Board Voltage Waveforms z L 5 18 ...
Страница 205: ...Figure 5 6 MONPS MONPSE Board Voltage Waveforms 5 19 ...
Страница 217: ... n 3 m I BUS CONTROL 1 LJ Pc II SYSTEM CONTROL I I L 1 I PERIPHERAL BUS IIF u lJ Figure A 2 PD78213 Block Diagram A 3 ...
Страница 248: ...REV A A 3 DRAWINGS 3 J32 J TI g 4 Figure A 27 MONPS Board Component Layout A 34 ...
Страница 249: ... J30 33r J32 d m b13 G a TI 7 IC20 r El m J24 C2 L cl mow B L U E u Figure A 28 MONPSE Board Component Layout A 35 ...
Страница 250: ... 2 1 1 1 1 I A b 2 Ozaz 1202 C O ZZH Z UOEE vu I 1 Figure A 29 MONPS Board Circuit Diagram ...
Страница 251: ...REV A 1 UXZO xl OX 9 xl Onz b 8M 118 en A N J 93 T 818 Figure A 30 MONPSE Board Circuit Diagram A 37 ...
Страница 252: ...L t g Figure A 31 JUNMM Board Component Layout A 38 ...