SAM7X128 Atmel Corporation, SAM7X128 Datasheet - Page 45
SAM7X128
Manufacturer Part Number
SAM7X128
Description
Manufacturer
Atmel Corporation
Specifications of SAM7X128
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
62
Ext Interrupts
62
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
1
Uart
3
Can
1
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.3
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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12. Debug and Test Features
12.1
12.2
6120I–ATARM–06-Apr-11
Description
Block Diagram
The SAM7X 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 down-
loading 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 Communica-
tion Channel.
A set of dedicated debug and test input/output pins gives direct access to these capabilities from
a PC-based test environment.
Figure 12-1. Debug and Test Block Diagram
PDC
Boundary
ARM7TDMI
TAP
DBGU
ICE
ICE/JTAG
TAP
Reset
and
Test
SAM7X512/256/128
POR
TMS
TCK
TDI
JTAGSEL
TDO
DTXD
DRXD
TST
45
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