Table 11. Bit Definitions*
Table 13. 1.8432MHz Baud Rates
Table 12. Field Definitions
*
Default setting is clear
MAX3100
SPI/Microwire-Compatible
UART in QSOP-16
______________________________________________________________________________________ 19
Baud
115.2k
B3...B0
56k0 0 0 1 2
0 0 0 0 1
28k0 0 1 0 4
14k
BRD
0 0 1 1 8
Baud
38.4k
B3...B0
19.2k1 0 0 1 6
1 0 0 0 3
96001 0 1 0 12
4800
BRD
1 0 1 1 24
2400
12001 1 0 1 96
1 1 0 0 48
6001 1 1 0 192
3001 1 1 1 384
7200
36000 1 0 1 32
0 1 0 0 16
18000 1 1 0 64
9000 1 1 1 128
MeaningRegister Field Name
Baud-rate divisor
Transmit dataWrite Data D7t–D0t
Config B3–B0
Received parity bitRead Data Pr
Received dataRead Data D7r–D0r
Parity disabledParity enabledConfig PE
Enable FIFO
buffer
Disable FIFO
buffer
Bit Set (1) Bit Clear (0)
OperateShutdownConfig SHDNi
Disable transmit-
done interrupt
Enable transmit-
done interrupt
Disable data-
received
interrupt
Enable data-
received inter-
rupt
Config
RM
Config
TM
Disable parity
interrupt
Enable parity
interrupt
Disable framing-
error interrupt
Enable framing-
error interrupt
Config
RAM
Standard
timing
Enable IrDA
timing mode
One stop bitTwo stop bitsConfig ST
Config IR
Config
PM
Config
Register
FEN
Bit
Name
Bit Set (1) Bit Clear (0)
Word length =
8 bits
Word length =
7 bits
Config L
Enable normal
operation
Inhibit TX output
Register
Drive RTS out-
put pin high
Drive RTS output
pin low
Write
Data
RTS
Write
Data
TE
Transmit
parity = 0
Transmit
parity = 1
Write
Data
Pt
Normal
Data overrun or
framing error
CTS input pin is
high
CTS input pin is
low
Read
Data
CTS
Data buffer is
empty
Data has been
received
UART is busy
transmitting
Transmit buffer
is empty
All T
All R
Bit
Name
Read
Data
RA/FE
