z8f0813 ZiLOG Semiconductor, z8f0813 Datasheet - Page 217

• Manufacturer Part Number: z8f0813
• Description: High-performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS024314-0308
(Output)
(Output)
TXD
DE
Table 131. UART Timing Without CTS
Parameter Abbreviation
UART
T
T
1
2
Figure 33
CTS is not used for flow control. DE asserts after the transmit data register has been
written. DE remains asserted for multiple characters as long as the transmit data register is
written with the next character before the current character has completed.
DE assertion to TXD falling edge (start bit) delay
End of Stop Bit(s) to DE deassertion delay (Tx
data register is empty)
and
T1
Table 131
Figure 33. UART Timing Without CTS
start
provide timing information for UART pins for the case where
bit0
bit 1
bit 7
Z8 Encore! XP
Minimum
1 * XIN
period
± 5
parity
Delay (ns)
Product Specification
Electrical Characteristics
stop
Maximum
1 bit time
®
end of
stop bit(s)
F0823 Series
T2
207