1<?xml version="1.0" encoding="utf-8" standalone="no"?>
2<device xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" schemaVersion="1.1" xs:noNamespaceSchemaLocation="svd_schema.xsd">
3  <peripheral>
4    <name>SEMA</name>
5    <description>The Semaphore peripheral allows multiple cores in a system to cooperate when accessing shred resources.
6                                     The peripheral contains eight semaphores that can be atomically set and cleared. It is left to the discretion of the software
7                                     architect to decide how and when the semaphores are used and how they are allocated. Existing hardware does not have to be
8
9                                     modified for this type of cooperative sharing, and the use of semaphores is exclusively within the software domain.</description>
10    <baseAddress>0x4003E000</baseAddress>
11    <addressBlock>
12      <offset>0x00</offset>
13      <size>0x1000</size>
14      <usage>registers</usage>
15    </addressBlock>
16    <registers>
17      <register>
18        <dim>8</dim>
19        <dimIncrement>0x04</dimIncrement>
20        <name>SEMAPHORES[%s]</name>
21        <description>Read to test and set, returns prior value. Write 0 to clear semaphore.</description>
22        <addressOffset>0x000</addressOffset>
23        <size>32</size>
24        <fields>
25          <field>
26            <name>sema</name>
27            <bitOffset>0</bitOffset>
28            <bitWidth>1</bitWidth>
29          </field>
30        </fields>
31      </register>
32      <register>
33        <name>status</name>
34        <description>Semaphore status bits. 0 indicates the semaphore is free, 1 indicates taken.</description>
35        <addressOffset>0x100</addressOffset>
36        <size>32</size>
37        <fields>
38          <field>
39            <name>STATUS</name>
40            <bitOffset>0</bitOffset>
41            <bitWidth>8</bitWidth>
42          </field>
43        </fields>
44      </register>
45    </registers>
46  </peripheral>
47  <!-- SEMA:
48                                         Semaphore                            -->
49</device>