Struct probe_rs::architecture::arm::ap::CSW

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pub struct CSW {
Show 14 fields
    pub DbgSwEnable: u8,
    pub HNONSEC: u8,
    pub PROT: u8,
    pub CACHE: u8,
    pub SPIDEN: u8,
    pub _RES0: u8,
    pub MTE: u8,
    pub Type: u8,
    pub Mode: u8,
    pub TrinProg: u8,
    pub DeviceEn: u8,
    pub AddrInc: AddressIncrement,
    pub _RES1: u8,
    pub SIZE: DataSize,

}
Expand description

Control and Status Word register

The control and status word register (CSW) is used to configure memory access through the memory AP.

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§DbgSwEnable: u8

Is debug software access enabled.

§HNONSEC: u8

Specifies whether HNONSEC is enabled.

§PROT: u8

Prot

§CACHE: u8

Cache

§SPIDEN: u8

Secure Debug Enabled. This field has one of the following values:

  • 0b0 Secure access is disabled.
  • 0b1 Secure access is enabled. This field is optional, and read-only. If not implemented, the bit is RES0. If CSW.DEVICEEN is 0b0, SDEVICEEN is ignored and the effective value of SDEVICEEN is 0b1. For more information, see Enabling access to the connected debug device or memory system on page C2-154. Note In ADIv5 and older versions of the architecture, the CSW.SPIDEN field is in the same bit position as CSW.SDeviceEn, and has the same meaning. From ADIv6, the name SDeviceEn is used to avoid confusion between this field and the SPIDEN signal on the authentication interface.
§_RES0: u8

Reserved.

§MTE: u8

1 if memory tagging access is enabled.

§Type: u8

Memory tagging type. Implementation defined.

§Mode: u8

Mode of operation. Is set to 0b0000 normally.

§TrinProg: u8

A transfer is in progress. Can be used to poll whether an aborted transaction has completed. Read only.

§DeviceEn: u8

1 if transactions can be issued through this access port at the moment. Read only.

§AddrInc: AddressIncrement

The address increment on DRW access.

§_RES1: u8

Reserved

§SIZE: DataSize

The access size of this memory AP.

Implementations§

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impl CSW

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pub fn new(data_size: DataSize) -> Self

Creates a new CSW content with default values and a configurable DataSize. See in code documentation for more info.

The CSW Register is set for an AMBA AHB Access, according to the ARM Debug Interface Architecture Specification.

The PROT bits are set as follows:

HNONSEC[30]          = 1  - Should be One, if not supported.
MasterType, bit [29] = 1  - Access as default AHB Master
HPROT[4]             = 0  - Non-allocating access

The CACHE bits are set for the following AHB access:

HPROT[0] == 1   - data           access
HPROT[1] == 1   - privileged     access
HPROT[2] == 0   - non-bufferable access
HPROT[3] == 1   - cacheable      access

Setting cacheable indicates the request must not bypass the cache, to ensure we observe the same state as the CPU core. On cores without cache the bit is RAZ/WI.

Trait Implementations§

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impl Clone for CSW

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fn clone(&self) -> CSW

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CSW

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

Formats the value using the given formatter. Read more
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impl Default for CSW

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fn default() -> CSW

Returns the “default value” for a type. Read more
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impl From<CSW> for u32

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fn from(value: CSW) -> u32

Converts to this type from the input type.
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impl PartialEq for CSW

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Register for CSW

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const ADDRESS: u8 = 0u8

The address of the register (in bytes).
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const NAME: &'static str = "CSW"

The name of the register as string.
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impl TryFrom<u32> for CSW

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type Error = RegisterParseError

The type returned in the event of a conversion error.
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fn try_from(value: u32) -> Result<CSW, Self::Error>

Performs the conversion.
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impl ApRegister<MemoryAp> for CSW

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impl Copy for CSW

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impl Eq for CSW

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impl StructuralPartialEq for CSW

Auto Trait Implementations§

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impl RefUnwindSafe for CSW

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impl Send for CSW

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impl Sync for CSW

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impl Unpin for CSW

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impl UnwindSafe for CSW

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Change the foreground color to bright purple
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Change the foreground color to bright cyan
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Change the background color to bright cyan
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Change the foreground color to bright white
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