Controlling Debugging; Figure 9-2 Arm720T Processor Block Diagram - Epson ARM720T Core Cpu Manual

9.2

Controlling debugging

The major blocks of the ARM720T processor are:
ARM CPU core
EmbeddedICE-RT macrocell
TAP controller
These blocks are shown in Figure 9-2.
ARM720T
EmbeddedICE-RT
Scan chain 2
ARM720T CORE CPU MANUAL
This has hardware support for debug.
A set of registers and comparators that you use to generate debug
exceptions (such as breakpoints). This unit is described in
EmbeddedICE-RT macrocell
Controls the action of the scan chains using a JTAG serial
interface. For more details, see
ARM720T
processor
ARM720T TAP controller
(also provides scan chain 0
control signals)

Figure 9-2 ARM720T processor block diagram

EPSON
9: Debugging Your System
on page 9-10.
The TAP controller
System control
processor
Scan chain 15
The
on page 9-19.
9-3