82C52 Datasheet, PDF (16/20 Pages) Intersil Corporation – CMOS Serial Controller Interface

82C52
UART Timing Characterization (Continued)
8/I
9/I
10/I
11/I
12/I
13/I
14/I
15/I
16/I
I/1
I/2
I/3
CO(BRG)
WR
TBRE ^{NOTE 1}
SDO
(19)
TWLTL
(20)
TCLTH
NOTE 2
NOTE 3
LAST STOP BIT / IDLE
(18)
TDTX
IDLE / START BIT
RD
INTR
(21)
TIHF
(23)
TRLIL
CO(BRG)
CTS
11
12
13
14
15
16
(24)
TCTHX
NOTE 4
TBRE
SDO
LAST STOP BIT
DISABLED
IDLE
FIGURE 18. TRANSMIT TIMING
(20)
TCLTH
NOTE 5
NOTE 6
1
2
(18)
TDTX
START BIT
16
FN2950.3
April 26, 2006