SAM7S321 Atmel Corporation, SAM7S321 Datasheet - Page 259
SAM7S321
Manufacturer Part Number
SAM7S321
Description
Manufacturer
Atmel Corporation
Specifications of SAM7S321
Flash (kbytes)
32 Kbytes
Pin Count
64
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
3
Ssc
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)
8
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
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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B.12.1 Programming and reading watchpoint registers
ARM DDI 0029G
TDI
Scan chain
Read/write
Address
register
TDO
Data
31
4
0
0
A watchpoint register is programmed by shifting data into the EmbeddedICE scan
chain, scan chain 2. The scan chain is a 38-bit shift register comprising:
•
•
•
This setup is shown in Figure B-7 on page B-41.
a 32-bit data field
a 5-bit address field
a read/write bit.
Address
decoder
Copyright © 1994-2001. All rights reserved.
D[31:0]
A[31:0]
Control
Value
Watchpoint registers and comparators
Mask
Figure B-7 EmbeddedICE block diagram
Comparator
+
Update
Debug in Depth
Breakpoint
condition
B-41
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