SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
LCR[6:0] define parameters of the transmission and reception. Note: As soon as LCR[6] is set to 1, the TX line is forced to 0 and remains in this state as long as LCR[6] = 1.
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| Instance Name | Physical Address |
|---|---|
| UART0 | 0280 000Ch |
| UART1 | 0281 000Ch |
| UART2 | 0282 000Ch |
| UART3 | 0283 000Ch |
| UART4 | 0284 000Ch |
| UART5 | 0285 000Ch |
| UART6 | 0286 000Ch |
| WKUP_UART0 | 2B30 000Ch |
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| RESERVED_24 | |||||||
| R | |||||||
| 0h | |||||||
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| RESERVED_24 | |||||||
| R | |||||||
| 0h | |||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| RESERVED_24 | |||||||
| R | |||||||
| 0h | |||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| DIV_EN | BREAK_EN | PARITY_TYPE2 | PARITY_TYPE1 | PARITY_EN | NB_STOP | CHAR_LENGTH | |
| R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| 0h | 0h | 0h | 0h | 0h | 0h | 0h | |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31:8 | RESERVED_24 | R | 0h | |
| 7 | DIV_EN | R/W | 0h | 0 Normal operating condition
1 Divisor latch enable. Allows to access to
DLL, DLH and other registers (refer to the
registers mapping) |
| 6 | BREAK_EN | R/W | 0h | Break control bit. 0 Normal operating condition.
1 Forces the transmitter output to go low to
alert the communication terminal |
| 5 | PARITY_TYPE2 | R/W | 0h | 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. Reset Source: mod_g_arstn |
| 4 | PARITY_TYPE1 | R/W | 0h | 0 Odd parity is generated (if LCR[3] = 1) 1 Even parity is generated (if LCR[3] = 1) |
| 3 | PARITY_EN | R/W | 0h | 0 No parity
1 A parity bit is generated during
transmission and the receiver checks for
received parity. |
| 2 | NB_STOP | R/W | 0h | Specifies the number of stop bits: 0 1 stop bits (word length = 5, 6, 7, 8)
1 1.5 stop bits (word length = 5) in USART
mode. 2 stop bits (word length = 6, 7, 8) |
| 1:0 | CHAR_LENGTH | R/W | 0h | Specifies the word length to be transmitted or received. 0 5 bits 1 6 bits 2 7 bits 3 8 bits |