SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 51

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SAM7SE256

Manufacturer Part Number
SAM7SE256
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM7SE256

Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
48 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
88
Ext Interrupts
88
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)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
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
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
12.3.2
12.4
6222F–ATARM–14-Jan-11
Debug and Test Pin Description
Test Environment
Figure 12-3
ter. In this example, the “board in test” is designed using a number of JTAG-compliant devices.
These devices can be connected to form a single scan chain.
Figure 12-3. Application Test Environment Example
Table 12-1.
Pin Name
NRST
TST
TCK
TDI
TDO
TMS
JTAGSEL
DRXD
DTXD
shows a test environment example. Test vectors are sent and interpreted by the tes-
Debug and Test Pin List
AT91SAM7SExx-based Application Board In Test
Connector
ICE/JTAG
AT91SAM7SExx
Interface
JTAG
Function
Microcontroller Reset
Test Mode Select
Test Clock
Test Data In
Test Data Out
Test Mode Select
JTAG Selection
Debug Receive Data
Debug Transmit Data
Chip n
ICE and JTAG
Debug Unit
Reset/Test
Test Adaptor
Chip 2
Chip 1
SAM7SE512/256/32
Tester
Input/Output
Output
Output
Type
Input
Input
Input
Input
Input
Input
Active Level
High
Low
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