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AT91SAM7X512 датащи(PDF) 49 Page - ATMEL Corporation

номер детали AT91SAM7X512
подробное описание детали  AT91 ARM Thumb-based Microcontrollers
PDF  687 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91SAM7X512 датащи(HTML) 49 Page - ATMEL Corporation

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6120H–ATARM–17-Feb-09
AT91SAM7X512/256/128 Preliminary
with a non-JTAG chip ID that identifies the processor to the ICE system. This is not IEEE 1149.1
JTAG-compliant.
It is not possible to switch directly between JTAG and ICE operations. A chip reset must be per-
formed after JTAGSEL is changed.
A Boundary-scan Descriptor Language (BSDL) file is provided to set up test.
12.5.4.1
JTAG Boundary-scan Register
The Boundary-scan Register (BSR) contains 187 bits that correspond to active pins and associ-
ated control signals.
Each AT91SAM7X input/output pin corresponds to a 3-bit register in the BSR. The OUTPUT bit
contains data that can be forced on the pad. The INPUT bit facilitates the observability of data
applied to the pad. The CONTROL bit selects the direction of the pad.
Table 12-2.
AT91SAM7X JTAG Boundary Scan Register
Bit
Number
Pin Name
Pin Type
Associated BSR
Cells
187
PA30/IRQ0/PCK2
IN/OUT
INPUT
186
OUTPUT
185
CONTROL
184
PA0/RXD0
IN/OUT
INPUT
183
OUTPUT
182
CONTROL
181
PA1/TXD0
IN/OUT
INPUT
180
OUTPUT
179
CONTROL
178
PA3/RTS0/SPI1_NPCS2
IN/OUT
INPUT
177
OUTPUT
176
CONTROL
175
PA2/SCK0/SPI1_NPCS1
IN/OUT
INPUT
174
OUTPUT
173
CONTROL
172
PA4/CTS0/SPI1_NPCS3
IN/OUT
INPUT
171
OUTPUT
170
CONTROL
169
PA5/RXD1
IN/OUT
INPUT
168
OUTPUT
167
CONTROL
166
PA6/TXD1
IN/OUT
CONTROL
165
INPUT
164
OUTPUT



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