Datasheet

ADuC7033
Rev. B | Page 109 of 140
UART Tx Register
Name: COMTX
Address: 0xFFFF0700
Access: Write only
Function: Write to this 8-bit register to transmit data using
the UART.
UART Rx Register
Name: COMRX
Address: 0xFFFF0700
Default
Va lu e:
0x00
Access: Read only
Function: This 8-bit register is read from to receive data
transmitted using the UART.
UART Divisor Latch Register 0
Name: COMDIV0
Address: 0xFFFF0700
Default
Va lu e:
0x00
Access: Read/write
Function: This 8-bit register contains the least significant byte
of the divisor latch that controls the baud rate at
which the UART operates.
UART Divisor Latch Register 1
Name: COMDIV1
Address: 0xFFFF0704
Default
Va lu e:
0x00
Access: Read/write
Function: This 8-bit register contains the most significant
byte of the divisor latch that controls the baud rate
at which the UART operates.