Enum Phase 

pub enum Phase {
    Address,
    Data,
}

Which half of a transaction is on the wire.

The polarity, and a contradiction that turns out not to be one

docs/accuracy-ledger.md recorded S-1: the User’s Manual says command = SysCmd4 0 while the wiki’s cheat sheet says 1. Reading both carefully, they agree on every bit value and disagree only on English.

• UM §12.11.1: “During address cycles [SysCmd4 = 0] … contains a System interface command”, and “During data cycles [SysCmd4 = 1]”.
• The wiki table gives read/write requests bit 4 = 0 (labeled “Data req”) and data-carrying cycles bit 4 = 1 (labeled “Command”).

So a request always has bit 4 clear and a data beat always has it set, in both sources. The wiki simply uses “Command” for the cycle the manual calls a data identifier. We follow the manual’s naming, since it is the vendor spec and the rest of this crate cites it.

Variants

Address

The address cycle: SysCmd4 = 0, carrying a command in SysCmd(3:0).

Data

The data cycle: SysCmd4 = 1, carrying a data identifier.

Implementations

impl Phase

pub const fn syscmd4(self) -> bool

SysCmd4 for this phase.

Trait Implementations

impl Clone for Phase

fn clone(&self) -> Phase

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Phase

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Phase

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Phase

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Phase

fn eq(&self, other: &Phase) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Phase

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Phase

impl Eq for Phase

impl StructuralPartialEq for Phase