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AT91SAM7X512 bảng dữ liệu(PDF) 45 Page - ATMEL Corporation

tên linh kiện AT91SAM7X512
Giải thích chi tiết về linh kiện  AT91 ARM Thumb-based Microcontrollers
PDF  687 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91SAM7X512 bảng dữ liệu(HTML) 45 Page - ATMEL Corporation

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6120H–ATARM–17-Feb-09
AT91SAM7X512/256/128 Preliminary
12. Debug and Test Features
12.1
Description
The AT91SAM7X Series features a number of complementary debug and test capabilities. A
common 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.
12.2
Block Diagram
Figure 12-1. Debug and Test Block Diagram
ICE
PDC
DBGU
DRXD
DTXD
TST
TMS
TCK
TDI
JTAGSEL
TDO
Boundary
TAP
ICE/JTAG
TAP
ARM7TDMI
Reset
and
Test
POR



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