82C52 Datasheet, PDF (15/20 Pages) Intersil Corporation – CMOS Serial Controller Interface

UART Timing Characterization
82C52
TCHCL (11)
IX
CO(IX)
TCLCH (10)
(15)
TS1
CO(BRG)
(16)
TS2
TCY
(17)
FIGURE 15. CLOCK (IX) AND CO TIMING
CO(BRG)
TX DATA
TDTX (18)
16 CO(BRG) PERIODS
DATA BIT
FIGURE 16. TRANSMITTER DATA
TDTX (18)
CO(BRG)
8 CO(BRG) PERIODS
RX DATA
START BIT
INTERNAL
SAMPLE
RX BAUD COUNTER
STARTS HERE
16 CO(BRG) PERIODS
FIGURE 17. RECEIVER DATA
15
DATA BIT
FN2950.3
April 26, 2006