SNIU028D February 2016 – September 2020 UCD3138 , UCD3138064 , UCD3138064A , UCD3138128 , UCD3138A , UCD3138A64
Address FFF7EC08 – UART 0 Transmit Status Register
Address FFF7EC08 – UART 1 Transmit Status Register
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
CONTINUE | LOOPBACK | Reserved | TX_EMPTY | TX_RDY | TX_WAKE | TX_ENA |
R/W-0 | R/W-0 | R-00 | R-0 | R-0 | R/W-0 | R/W-0 |
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7 | CONTINUE | R/W | 0 | Configure operation in suspend mode 0 = Stop transmitting on suspend (Default) 1 = Continue transmitting after initiation of suspend |
6 | LOOPBACK | R/W | 0 | Loopback Mode Configuration 0 = Normal mode (Default) 1 = Loopback Mode |
5-4 | Reserved | R | 00 | |
3 | TX_EMPTY | R | 0 | Transmit buffer status 0 = Transmit buffer is not empty 1 = Transmit buffer is empty |
2 | TX_RDY | R | 0 | Transmitter Ready 0 = UART Transmitter is not ready 1 = UART Transmitter is ready to transmit data |
1 | TX_WAKE | R/W | 0 | TX wake control bit 0 = UART Transmitter Wakeup disabled (Default) 1 = UART Transmitter Wakeup enabled |
0 | TX_ENA | R/W | 0 | Turns on TX module 0 = UART Transmitter Disabled (Default) 1 = UART Transmitter Enabled |