UART Registers
19.5.1.49 IER2 Register
The IER2 register enables RX/TX FIFOs empty corresponding interrupts. The IER2 register (IER2) is
shown in
and described in
.
Figure 19-82. IER2 Register
31
2
1
0
Reserved
EN_TXFIFO_E
EN_RXFIFO_E
MPTY
MPTY
R-0
R/W-0
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 19-81. IER2 Register Field Descriptions
Bit
Field
Value
Description
31-2
Reserved
0
Reserved.
1
EN_TXFIFO_EM
0
Disables EN_TXFIFO_EMPTY interrupt.
PTY
1
Enables EN_TXFIFO_EMPTY interrupt.
0
EN_RXFIFO_EM
Number of bits by characters.
PTY
0
Disables EN_RXFIFO_EMPTY interrupt.
1
Enables EN_RXFIFO_EMPTY interrupt.
3545
SPRUH73H – October 2011 – Revised April 2013
Universal Asynchronous Receiver/Transmitter (UART)
Copyright © 2011–2013, Texas Instruments Incorporated