Commodore MPS 1200 - Page 237

NORMAL
j- BYTE SENT UNDER AneNTION (TO OEVICESI-j IDATA BYTES
m ---, r ---"-LK""""'-' ,'"',--.O"',..,..<O'"'.'''''N:"':O,-----------
I I I TALKER SENDING
CL~ ~T' _____ ~
-TAli I I TNE'f I +-Tv -Ill'll-
om IN\ I wL!lwlill!lWl!Jlil L _____ ~
-lL"B MSBI
T
H1
- JATAVALIO I-TF-
1
LISTENER READY·FOR·OATA LISTENER DATA·ACCEPTED
END·DR·IDENTIFY HANDSHAKE (LAST BYTE IN MESSAGE)
TALKER REA-OY·TO-SEND TALKER SENDING
~' ___ -l'
SERIAL BUS TIMING
O •• crlpUon
Symbol
Min.
ATN RESPONSE (REQUIRED)'
TAT
-
.iTN ____ ~
LISTENER HOLD OFF
TH
0
NON·EOI RESPONSE TO RF02
TN'
-
BIT SET·UP TALKEPI·
T,
20.,
DATA VALID
Tv
20ps
FFiAME HANDSHAKE3
T,
0
FRAME TO RELEASE OF ATN
T, 201'8
BETWEEN BYTES TIME
TBB
-
EOI RESPONSE TIME
TYe
200.,
EOI RESPONSE HOLD TIME
TEl
80.,
TALKER AESPONSE LIMIT
TRY
0
BYTE·ACKNOWLEDGE·
TeR
20.,
NOln:
I ... maJi'lmum lime e.ceed&d. dnlCII 1'10\ present error
2. II mulmum IIml IIIICeeded. EOI r"pOIlN 'VQul,n
3. If I"I'I&IIlmum lime IIIt:eeded. I'arne IIIfOl"
T,.
-
.-
40~5
70ps
20,111
20,11
-
-
2~p!l
-
301'11
30.,
4. Tvlln<l TpR minimum muSi bllso", lor .. "tneJ dt!v'Clllo bell lalkll'
Figure E-2. Serial Interface Signals
E-3
M ..
lUCMI) ••