Z8F1680SH020SG Datasheet, PDF (395/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

DE
(Output)
Z8 Encore! XP^® F1680 Series
Product Specification
370
T₂
TXD
(Output)
start bit0
bit 1
T₁
bit 7 parity stop
end of
stop bit(s)
Figure 79. UART Timing Without CTS
Table 208. UART Timing Without CTS
Parameter Abbreviation
UART
T₁
DE assertion to TXD falling edge (start bit) delay
T₂
End of stop bit(s) to DE deassertion delay (Tx Data Register is
empty)
Delay (ns)
Min
Max
1 * X_IN
period
±5
1 bit time
PS025015-1212
PRELIMINARY
Electrical Characteristics