UPD72001-A8 NEC [NEC], UPD72001-A8 Datasheet - Page 18

• Manufacturer Part Number: UPD72001-A8
• Description: MULTI-PROTOCOL SERIAL CONTROLLERS
• Manufacturer: NEC [NEC]

Modem control:
Communication control:
Crystal oscillation and reset
18
CTS, DCD, SYNC pulse
width
CTS, DCD, SYNC
STR
Transmit enable command
Receive enable command (DCD )
setup time (vs. start bit, STR
TR
Receive enable command (DCD )
hold time (vs. STR
Receive clock (STR
hold time (vs. stop bit, MSB of CRC,
MSB of end flag)
Receive clock (STR
setup time (vs. start bit, sync character)
XI1 input cycle time
RESET pulse width
(WR , CTS )
Note Of STR
Caution The system clock cycle in all modes must be five times that of the data rate.
X
C
X
C, TR
of sync character)
X
C
Parameter
Parameter
Parameter
X
X
C and TR
T
SYNC setup time
C , TR
X
X
X
C, TR
C, TR
D delay time
INT delay time
Note
X
X
X
C)
C)
C )
X
High
Low
X
C ,
Note
Note
C, the one used as the receive clock.
Note
Symbol
Symbol
Symbol
T
t
t
t
t
t
t
t
t
t
t
t
HRCRE1
HRCRE2
HRCRE3
HRDRC1
HRDRC2
HRDRC3
SRCRD1
SRCRD2
DTETD1
DTETD2
t
t
t
SRERC
t
SSYRC
t
WRSL
DMIQ
WMH
WML
CYX
COP external synchronization
ASYNC, COP
BOP
ASYNC
COP
BOP
ASYNC
COP
BOP
ASYNC
COP, BOP
Condition
Condition
Condition
PD72001-11, 72001-A8
+ 8t
+ 8t
20t
MIN.
MIN.
3t
MIN.
22
90
Rated Value
Rated Value
Rated Value
2
2
0
4
1
7
1
5
1
1
2
CYC
CYC
CYK
CYK
MAX.
MAX.
MAX.
2000
2
2
3
7
Unit
Unit
Unit
t
t
t
t
t
t
t
t
t
t
t
t
Bit
Bit
CYK
CYK
CYK
CYK
CYC
CYC
CYC
CYK
CYC
CYC
CYC
ns
CYK