Epson 200 - Manual (Page 17)

1.3 INTERFACE SPECIFICATIONS
The EPSON Stylus Color 200/EPSON Stylus 200 is standard-equipped with an 8-bit parallel and serial
interface.
1.3.1 Parallel Interface Specifications (Forward Channel)
Data format: 8-bit parallel
Synchronization: By STROBE pulse synchronization
Handshaking: By BUSY and ACKNLG signals
Signal level: TTL compatible level (IEEE-1284 level 1 device)
Adaptable connector: 36-pin 57-30360 (Amphenol) or equivalent
Data transmission timing: See Figure 1-6.
Note: Transition time (rise time and fall time) of every input signal must be less than 0.2
µ
s.
Parameter Minimum Maximum
tsetup 500 nsec ——
thold 500 nsec ——
tstb 500 nsec ——
tready 0 ——
tbusy —— 500 nsec
treply —— ——
tack 500 nsec 10 us
tnbusy 0 ——
tnext 0 ——
ttout* —— 120 nsec
ttin** —— 200 nsec
* Rise and fall time of output siganls
** Rise and fall time of input signals
data byte n data byte n+1
t h old
tsetup tstb tnext
tr e ady tb u s y
trep ly ta c k tn b u s y
DATA
STROBE
BUSY
ACKNLG
Figure 1-6. Data Transmission Timing
Epson Stylus Color 200 /Epson Stylus 200 Product Description
Rev. A 1-9