Struct SramMacro 

pub struct SramMacro {
    pub name: &'static str,
    pub words: u32,
    pub bits: u32,
    pub width_um: f64,
    pub height_um: f64,
    pub ports: &'static str,
    pub corners: &'static [&'static str],
}

A standard-cell SRAM macro the PDK actually ships, with the facts that decide whether a design can use it.

corners is not decoration. Of sky130’s four macros, three ship only TT_1p8V_25C, and the signoff recorder gates on multi_corner — so a design built from those three cannot honestly claim a multi-corner signoff no matter how clean its logic is. That fact belongs next to the macro, not in someone’s memory.

Fields

name: &'static str

words: u32

Addressable words.

bits: u32

Bits per word — the macro’s data width. A design whose arrays are this wide needs no width-banking, which is most of what makes a memory plan cheap or expensive.

width_um: f64

Physical size in micrometres, from the macro’s own LEF SIZE line.

height_um: f64

ports: &'static str

Read/write ports, e.g. “1rw1r”. An array read every cycle against writes in the same block needs a dual-port macro; a single-port one cannot express it at any speed.

corners: &'static [&'static str]

Liberty corners shipped. Fewer than a full set caps what the design can claim.

Implementations

impl SramMacro

pub fn area_mm2(&self) -> f64

pub fn capacity_bits(&self) -> u64

pub fn is_multi_corner(&self) -> bool

Whether this macro can carry a multi-corner signoff claim. A single shipped corner cannot: slow and fast silicon are simply not characterized.

Trait Implementations

impl Clone for SramMacro

fn clone(&self) -> SramMacro

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SramMacro

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

Formats the value using the given formatter.

impl PartialEq for SramMacro

fn eq(&self, other: &SramMacro) -> 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 StructuralPartialEq for SramMacro