Rainbow Electronics AT75C220 - Manual (Page 93)

AT75C220
93
USART Receiver Time-out Register
Name: US_RTOR
Access Type:Read/write
Reset Value: 0x0
• TO: Time-out Value
When a value is written to this register, a start time-out command is automatically performed.
Time-out duration = TO x 4 x Bit period
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
TO
TO Effect
0 Disables the RX time-out function.
1 - 255 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).