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Sharp MZ-80P4 Instruction Manual page 44

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• Signal timing
The timing charts (standard) are shown below.
\. Data input
2. BUSY signal
3. Line feed
4. Cancel code, undefined code
5. Horizontal tabulation (09H)
6. Carriage return (Printing instruction code)
7. When PE Occurs during SELECT
DATA--...JI
DATA 5TS
BUSY
~
- -
ACK
BUSY
-I ;
I-l0~s
ACK
'01
DATA
DATA STB
DAT~
DATASTB
LJ
BUSY
I
ACK
DATA
DATA STB
t
BUSY
ACK
DATA
r---r
DftTA 5TS
~
BUSY
ACK
DAT~
DATA 5TB
~
BUSY
ACK
PE
SELECT ---,)'
FAULT - , / ,
BUSY
ON LINE SW
ACK
41
400,"5
t=
(
\
)
70ms
-!
~
400}1s
r-
u-
6,5ms
=t=
t=
.
f
I(
'/
U

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