LM3S308 Luminary Micro, Inc, LM3S308 Datasheet - Page 270

• Manufacturer Part Number: LM3S308
• Description: Lm3s308 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Reset
Reset
Type
Type
Universal Asynchronous Receivers/Transmitters (UARTs)
UART Fractional Baud-Rate Divisor (UARTFBRD)
UART0 base: 0x4000.C000
UART1 base: 0x4000.D000
Offset 0x028
Type R/W, reset 0x0000.0000
270
Bit/Field
31:6
5:0
RO
RO
31
15
0
0
RO
RO
Register 5: UART Fractional Baud-Rate Divisor (UARTFBRD), offset 0x028
The UARTFBRD register is the fractional part of the baud-rate divisor value. All the bits are cleared
on reset. When changing the UARTFBRD register, the new value does not take effect until
transmission/reception of the current character is complete. Any changes to the baud-rate divisor
must be followed by a write to the UARTLCRH register. See “Baud-Rate Generation” on page 258
for configuration details.
30
14
0
0
RO
RO
DIVFRAC
29
13
reserved
0
0
Name
RO
RO
28
12
0
0
RO
RO
27
11
0
0
reserved
Type
R/W
RO
RO
RO
26
10
0
0
RO
RO
0x000
Reset
25
0x00
0
9
0
Preliminary
RO
RO
24
0
8
0
reserved
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Fractional Baud-Rate Divisor
RO
RO
23
0
7
0
RO
RO
22
0
6
0
R/W
RO
21
0
5
0
R/W
RO
20
0
4
0
R/W
RO
19
0
3
0
DIVFRAC
R/W
RO
18
0
2
0
R/W
RO
17
0
1
0
June 04, 2008
R/W
RO
16
0
0
0