UART Read Write Byte Register - 1.0 English - PG428

MicroBlaze Debug Module V (MDM V) LogiCORE IP Product Guide (PG428)
Document ID
PG428
Release Date
2024-11-13
Version
1.0 English

This register is read-write and accessed with the custom0 Debug Module register at hexadecimal address 70.

Table 1. UART Read Write Byte Register (custom0)
Reserved Read Write Byte
31 8 7 0
Table 2. UART Read Write Byte Register Bit Definitions
Bits Name Access Reset Value Description
31:8 - N/A 0 Reserved
7:0 Read Write Byte RW 0 UART Receive and Transmit Character

The register is used to read an 8-bit character, written by a program running on MicroBlaze V via standard output. This character is normally transferred via the MDM V and printed on the host computer console. This register should only be read when the UART Control Status Register TX Data Present bit is set.

The register is also used to write an 8-bit character, to be read by a program running on MicroBlaze V via standard input. This character is normally typed by the user on the host computer console, and transferred via the MDM V. This register should not be written when the UART Control Status Register RX Buffer Full bit is set.