Tty /Eia Terminal Interface Module Detailed Functional Block Diagram - Texas Instruments 990 Maintenance Manual
Computer tv /eia interface module depot
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Also See for 990:
- Operation manual (276 pages) ,
- User manual (274 pages) ,
- Manual (211 pages)
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-
N
0
CRUOATAOUT
STORECLK-
CRUBIT, 12-15
....
IMOOSELA-
-
~
TLIORES
(C )1330 I B
(1
2)
T-MHZ
OSCIL-
LA TOR
T
BAUO
RATE
CLOCK
ADDRESS
DECODER
1-1
-
SETGO-
JTRANSMITl XMTGO
jTRAN!IMIT
1
&TP'XCK-
XMTGOCR- ]
GO
XMTGO-
XSCLK
...-J
BIT
XMTGOCR-
FLAG
COUNTER
l
CRUOATA-
XMTGO
~T=
.fTR•••""H
XMTGO
OUT-
XSCLK _
OATACLK
::I
SHIFT
XMT_.§9-:
SET GO-
TRANSMIT
-
TTYLX
-r.LOCK GEN
SHIFT
CURRENT
XSCLK
TRANSMIT
ERA TOR
XMSRIN
.-' REGISTER
LOOP
TTYHH
SHIFT
XMSRCLK
INTERFACE
...
GATING
LOGIC
OTRO
...
-
CRUBIT, 12-15, B
J
CRUSE LO...,
J
....
OTRO
AOOS9
-
DATA
CRUOATAOUT-~
TERMINAL
READY
CTR-
CTR-
RCTOI-
RCTE
-
--
-
-
LATCH
XMTO
~
DTF!Ot-
-
EIA
DTRE
-
r
*
l'ICR-
-
RTSOI-
LINE
RTSE
-
CRUOATAOUT--
REQUEST
FITS
RTS
DIAGNOSTIC
ORIVEl'IS
~
LOOP
XMT001
-
XMTOE
AOOSIO-
-
TO SEND
FITS-
1
FITS-
-
LOGIC
LATCH
CSR-
051'101
...
RCVO
OCOOI
....
-
OTRA
--J
WRITE
WRQ
oco-
RCVOOI
-
--
--
AOOSl 1- _
REQUEST
OIACM
RCR01
....
...
STPXCK- _
FLAG
WRQ-
OATACLK--
OTRA
-
READ
RRQ
-
OATACLK_ REQUEST
RRQ-
AODSl2-
INTERRUPT
CLRRRQ-
-
--
LOGIC
-
INT
OTRA
INTER-
PIUPT
OSR-
NEW
NSFT6-
--
~
MERGING
SNST ,1,2
STATUS
LOGIC
--
FLAG
~
AOOS1J-
EIA OP
CRUINT-
--
-
OTRA
-
H
WITH KITS
22651SO-OOO1
/0002 •
CRUOATAOUT-
INTERRUPT MASK INT-
RCR- BECOMES RING INDICATOR {RI)
MASK
AOOS1•-
--
LATCH
OTRA
OIAG-
--
CRUOATAOUT-
NOS TIC
OIAGM
AOOS15-
MOOE
--
LATCH
Figure 4-1. TTY /EIA Terminal Interface Module Detailed Functional Block Diagram (Sheet I of 2)
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