Product Specs

Table Of Contents
50 UART Universal asynchronous receiver/
transmitter
Page
540
T,CL
NT
Bit number
31 30
29
28
27
26
25
24
23 22 21 20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Id
A A
A
A
A
A
A
A
A A A A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Reset 0x04000000
0 0
0
0
0
1
0
0
0 0 0 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Id
RW Field
Value Id
Value
Description
Baud76800
0x013A9000
76800 baud (actual rate: 76923)
Baud115200
0x01D7E000
115200 baud (actual rate: 115942)
Baud230400
0x03AFB000
230400 baud (actual rate: 231884)
Baud250000
0x04000000
250000 baud
Baud460800
0x075F7000
460800 baud (actual rate: 470588)
Baud921600
0x0EBED000
921600 baud (actual rate: 941176)
Baud1M
0x10000000
1Mega baud
50.10.13 CONFIG
Address offset: 0x56C
Configuration of parity and hardware flow control
Bit number
Id
Reset 0x00000000
31 30
0 0
29
0
28
0
27
0
26
0
25
0
24
0
23 22 21 20
0 0 0 0
19
0
18
0
17
0
16
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
B
0
2
B
0
1
B
0
0
A
0
Id RW Field
Value Id
Value
Description
A RW HWFC
Disabled
0
Hardware flow control
Disabled
Enabled
1
Enabled
B RW PARITY
Excluded
0x0
Parity
Exclude parity bit
Included
0x7
Include parity bit
50.11 Electrical specification
50.11.1 UART electrical specification
Symbol
Description
Min.
Typ.
Max.
Units
f
UART
Baud rate for UART
42
.
1000
kbps
I
UART1M
Run current at max baud rate.
55
µA
I
UART115k
Run current at 115200 bps.
55
µA
I
UART1k2
Run current at 1200 bps.
55
µA
I
UART,IDLE
Idle current for UART
1
µA
t
UART,CTSH
CTS high time
1
µs
t
UART,START,LP
Time from STARTRX/STARTTX task to transmission started, low
power mode
t
UART,STAR
+
µs
t
START_HFI
t
UART,START,CL
Time from STARTRX/STARTTX task to transmission started,
constant latency mode
1
µs
42
Higher baud rates may require GPIOs to be set as High Drive, see GPIO chapter for more details.