mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 375

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
16.3.12 UART Autobaud Registers (UABUn/UABLn)
The UABUn registers hold the MSB, and the UABLn registers hold the LSB of the
calculated baud rate. If UCRn[ENAB] is set, the value in these registers is automatically
loaded into UDUn and UDLn.
16.3.13 UART Transmitter FIFO Registers (UTFn)
The UTFn registers contain control and status bits for the transmitter FIFO. Note that some
bits are read-only.
Address
Address
Address
Reset
Reset
Reset
Field
Field
Field
R/W
R/W
R/W
7
7
7
The minimum value that can be loaded on the concatenation of
UDUn with UDLn is 0x0002. Both UDUn and UDLn are
write-only and cannot be read by the CPU.
Figure 16-14. UART Autobaud Upper Registers (UABUn)
Figure 16-15. UART Autobaud Lower Registers (UABLn)
Figure 16-13. UART Divider Lower Registers (UDLn)
Chapter 16. UART Modules
MBAR + 0x120 (UABU0), 0x160 (UABU1)
MBAR + 0x124 (UABL0), 0x164 (UABL1)
MBAR + 0x11C (UDL0), 0x15C (UDL1)
NOTE:
Autobaud MSB
Autobaud LSB
Divider LSB
0000_0000
0000_0000
0000_0000
Write only
Read only
Read only
Register Descriptions
0
0
0
16-15