Uart Transmit Status Register (Uarttxst); Uart Transmit Status Register (Uarttxst) Register Field Descriptions - Texas Instruments UCD3138 Technical Reference Manual

UART Registers Reference

12.7.3 UART Transmit Status Register (UARTTXST)

Address FFF7D808 – UART 0 Transmit Status Register
Address FFF7D908 – UART 1 Transmit Status Register
7 6
CONTINUE LOOPBACK
R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 12-4. UART Transmit Status Register (UARTTXST) Register Field Descriptions
Bit Field
7 CONTINUE
6 LOOPBACK
5-4 Reserved
3 TX_EMPTY
2 TX_RDY
1 TX_WAKE
0 TX_ENA
428
UART Overview
Figure 12-5. UART Transmit Status Register (UARTTXST)
5 4
Reserved
R-00
Type Reset
R/W 0
Configure operation in suspend mode
0 = Stop transmitting on suspend (Default)
1 = Continue transmitting after initiation of suspend
R/W 0
Loopback Mode Configuration
0 = Normal mode (Default)
1 = Loopback Mode
R 00
R 0
Transmit buffer status
0 = Transmit buffer is not empty
1 = Transmit buffer is empty
R 0
Transmitter Ready
0 = UART Transmitter is not ready
1 = UART Transmitter is ready to transmit data
R/W 0
TX wake control bit
0 = UART Transmitter Wakeup disabled (Default)
1 = UART Transmitter Wakeup enabled
R/W 0
Turns on TX module
0 = UART Transmitter Disabled (Default)
1 = UART Transmitter Enabled
Copyright © 2016, Texas Instruments Incorporated
3 2
TX_EMPTY TX_RDY
R-0 R-0
Description
SNIU028A – February 2016 – Revised April 2016
www.ti.com
1 0
TX_WAKE TX_ENA
R/W-0 R/W-0
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