User Manual
636
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
UART1/UART2
19.8
Register Description
The registers are addressed wordwise.
19.8.1
UART Registers
Note:
The register names used here refer to UART1. For UART2, the register names need to be adapted
accordingly.
UART uses the Special Function Registers (SFRs) UART1->SCON, UART1->SBUF, SCU->BCON1, SCU->LINST
and SCU->BG1. SCON is the control register and SBUF is the data register. The serial port control and status
register is the SFR SCON. This register contains not only the mode selection bits, but also the 9th data bit for
transmit and receive (TB8 and RB8) and the serial port interrupt bits (TI and RI).
SBUF is the receive and transmit buffer of the serial interface. Writing to SBUF loads the transmit register and
initiates transmission. This register is used for both transmit and receive data. Transmit data is written to this
location and receive data is read from this location, but the two paths are independent. Reading out SBUF
accesses a physically separate receive register.
Table 335 Register
Address
Space
Module
Base Address
End Address
Note
UART1
4802 0000
H
4802 1FFF
H
UART1
UART2
4802 2000
H
4802 3FFF
H
UART2
SCU
5000 5000
H
5000 5FFF
H
SCU_DM
Table 336 Register
Overview
Register Short Name
Register Long Name
Offset Address
Reset Value
Serial Data Buffer
04
H
0000 0000
H
Serial Channel Control Register
00
H
0000 0000
H
Serial Channel Control Clear Register
08
H
0000 0000
H