AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 33

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

AT91SAM7S32 Debug and Test Features
Description
Block Diagram
Figure 10. Debug and Test Block Diagram
6071A–ATARM–28-Oct-04
PDC
Boundary
ARM7TDMI
TAP
The AT91SAM7S32 features a number of complementary debug and test capabilities. A com-
mon JTAG/ICE (In-Circuit Emulator) port is used for standard debugging functions, such as
downloading code and single-stepping through programs. The Debug Unit provides a two-pin
UART that can be used to upload an application into internal SRAM. It manages the interrupt
handling of the internal COMMTX and COMMRX signals that trace the activity of the Debug
Communication Channel.
A set of dedicated debug and test input/output pins gives direct access to these capabilities
from a PC-based test environment.
DBGU
ICE
ICE/JTAG
TAP
Reset
and
Test
AT91SAM7S32 Preliminary
POR
TMS
TCK
TDI
JTAGSEL
TDO
DTXD
DRXD
TST
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