xr68c681 Exar Corporation, xr68c681 Datasheet - Page 28

• Manufacturer Part Number: xr68c681
• Description: Cmos Dual Channel Uart Duart
• Manufacturer: Exar Corporation

D.3.1 Timer Mode:
C/T Output Frequency =
where:
f
Table 7
[CTUR] = the contents of the CTUR register in decimal
form
[CTLR] = the contents of the CTLR register in decimal
form
Bit Rate =
STS
XR68C681
= The frequency of the selected timing source (See
)
• CTUR •
• CTUR •
fsts
fsts
+
+
CTLR
CTLR
Table 1
Table 1
D.3.2 COUNTER MODE