CSR Bit Fields

RISC-V mtvt CSR Register

Address 0x307Privilege Not defined by the current standardAccess Not defined by the current standard / Not defined by the current standardMachine AIA, timer, and indirect interrupt CSRs

Neither the current official RISC-V privileged CSR address table nor the ratified AIA v1.0 CSR table defines `mtvt`; this site retains `mtvt`/0x307 only as a compatibility lookup key and assigns it no standard CSR semantics.

Bit Overview
bit 3 = only bit 3; bits 12..11 = bits 12 down to 11
MSBLSB
Field Map

Understand mtvt By Bit Fields

0 key fields
Official Basis & Search Notes

`mtvt`/0x307 is not a CSR defined by the current official privileged or ratified AIA v1.0 tables; the page retains compatibility lookup information only.

The current privileged machine-level CSR address table has no 0x307 entry; the AIA v1.0 machine-level CSR table lists 0x308 `mvien` but has no `mtvt`.
The AIA v1.0 machine-level CSR table has no `mtvt` entry.
Access, width, fields, and side effects therefore remain undefined.

What To Check First When Reading This CSR

  • - Neither current official table defines `mtvt` or 0x307 as a standard CSR.
  • - The name and address on this page are only a compatibility lookup key, not a basis for portable access.

Risk Checks Before Writing

  • - Do not infer `mtvt` permissions or fields from neighboring machine CSR address encodings.
  • - The current official specifications provide no standard read/write behavior for this name.

Put It Back Into A Real Flow

1

Check the name and address in the current privileged CSR address table.

2

Cross-check the ratified AIA v1.0 machine-level CSR table.

3

Because neither table defines the entry, do not perform a standard CSR access or infer bit fields.

FAQ

Can mtvt be programmed as a standard AIA CSR?

No. Neither ratified AIA v1.0 nor the current privileged CSR address table defines this name or a 0x307 entry.