AT91M40400
USART Receiver Time-out Register
Name:
Access Type:
US_RTOR
Read/Write
31
30
29
28
27
26
25
24
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23
22
21
20
19
18
17
16
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15
14
13
12
11
10
9
8
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7
6
5
4
3
2
1
0
TO
• TO: Time-out Value
When a value is written to this register, a Start Time-out Command is automatically performed.
TO
0
1-255
Disables the RX Time-out function.
The Time-out counter is loaded with TO when the Start Time-out Command is given
or when each new data character is received (after reception has started).
Time-out duration = TO x 4 x Bit period
USART Transmitter Time-guard Register
Name:
Access Type:
US_TTGR
Read/Write
31
30
29
28
27
26
25
24
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23
22
21
20
19
18
17
16
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---
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15
14
13
12
11
10
9
8
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7
6
5
4
3
2
1
0
TG
• TG: Time-guard Value
TG
0
1-255
Disables the TX Time-guard function.
TXD is inactive high after the transmission of each character for the
time-guard duration.
Time-guard duration = TG x Bit period
81