JAJSI95 December 2019 TL16C750E
PRODUCTION DATA.
This register controls the data communication format. The word length, number of stop bits, and parity type are selected by writing the appropriate bits to the LCR. Table 15 shows line control register bit settings.
BIT | BIT SETTINGS |
---|---|
1:0 | Specifies the word length to be transmitted or received
00 – 5 bits 01 – 6 bits 10 − 7 bits 11 – 8 bits |
2 | Specifies the number of stop bits:
0 – 1 stop bits (Word length = 5, 6, 7, 8) 1 – 1.5 stop bits (Word length = 5) 1 – 2 stop bits (Word length = 6, 7, 8) 3 |
3 | 0 = No parity
1 = A parity bit is generated during transmission and the receiver checks for received parity. |
4 | 0 = Odd parity is generated (if LCR[3] = 1)
1 = Even parity is generated (if LCR[3] = 1) |
5 | Selects the forced parity format (if LCR(3) = 1)
If LCR[5] = 1 and LCR[4] = 0 the parity bit is forced to 1 in the transmitted and received data. If LCR[5] = 1 and LCR[4] = 1 the parity bit is forced to 0 in the transmitted and received data. |
6 | Break control bit
0 = Normal operating condition 1 = Forces the transmitter output to go low to alert the communication terminal. |
7 | 0 = Normal operating condition
1 = Divisor latch enable |