Hardware Reference
In-Depth Information
Chapter 5
CPU
The Raspberry Pi includes an ARM 700 MHz CPU. In this chapter, you'll first look at the
versions of the Pi that have been released into the wild. Then after looking briefly at
overclocking, you'll examine how the CPU is exploited by the Linux application.
Identification
Several revisions of the Pi have been released and sold. Table 5-1 lists the known revisions
and some of the changes related to them.
Table 5-1. Board Identification 40, 41
Code
Model
Rev.
RAM
P1-03
P1-05
P1-13
P5
Manuf.
Comments
0002
B
1.0
256 MB
GPIO0
GPIO1
GPIO21
N
Egoman?
0003
B
1.0+
256 MB
GPIO0
GPIO1
GPIO21
N
Egoman?
Fuse mod and
D14 removed
0004
B
2.0
256 MB
GPIO1
GPIO2
GPIO27
Y
Sony
0005
B
2.0
256 MB
GPIO1
GPIO2
GPIO27
Y
Qisda
0006
B
2.0
256 MB
GPIO1
GPIO2
GPIO27
Y
Egoman
0007
A
2.0
256 MB
GPIO1
GPIO2
GPIO27
Y
Egoman
0008
A
2.0
256 MB
GPIO1
GPIO2
GPIO27
Y
Sony
0009
A
2.0
256 MB
GPIO1
GPIO2
GPIO27
Y
Qisda
000d
B
2.0
512 MB
GPIO1
GPIO2
GPIO27
Y
Egoman
000e
B
2.0
512 MB
GPIO1
GPIO2
GPIO27
Y
Sony
000f
B
2.0
512 MB
GPIO1
GPIO2
GPIO27
Y
Qisda
 
 
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