SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 96
SAM9XE512
Manufacturer Part Number
SAM9XE512
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9260.pdf
(290 pages)
2.SAM9261.pdf
(248 pages)
3.SAM9XE128.pdf
(860 pages)
4.SAM9XE128.pdf
(48 pages)
Specifications of SAM9XE512
Flash (kbytes)
512 Kbytes
Pin Count
217
Max. Operating Frequency
180 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
2
Uart
6
Ssc
1
Ethernet
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
312
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)
1.65 to 1.95
Fpu
No
Mpu / Mmu
No / Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9260 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9XE128 PDF datasheet #3
- SAM9XE128 PDF datasheet #4
- Current page: 96 of 860
- Download datasheet (13Mb)
14.3.3
14.3.4
96
AT91SAM9XE128/256/512 Preliminary
Read/Write Handshake
Device Operations
The read/write handshake is done by carrying out read/write operations on two registers of the
device that are accessible through the JTAG:
Access to these registers is done through the TAP 38-bit DR register comprising a 32-bit data
field, a 5-bit address field and a read/write bit. The data to be written is scanned into the 32-bit
data field with the address of the register to the 5-bit address field and 1 to the read/write bit. A
register is read by scanning its address into the address field and 0 into the read/write bit, going
through the UPDATE-DR TAP state, then scanning out the data.
Refer to the ARM7TDMI reference manuel for more information on Comm channel operations.
Figure 14-5. TAP 8-bit DR Register
A read or write takes place when the TAP controller enters UPDATE-DR state. Refer to the IEEE
1149.1 for more details on JTAG operations.
The write handshake is done by polling the Debug Comms Control Register until the R bit is
cleared. Once cleared, data can be written to the Debug Comms Data Register.
The read handshake is done by polling the Debug Comms Control Register until the W bit is set.
Once set, data can be read in the Debug Comms Data Register.
Several commands on the Flash memory are available. These commands are summarized in
Table 14-3 on page
is reading and writing the Debug Comms Registers.
TDI
• Debug Comms Control Register: DCCR
• Debug Comms Data Register: DCDR
• The address of the Debug Comms Control Register is 0x04.
• The address of the Debug Comms Data Register is 0x05.
The Debug Comms Control Register is read-only and allows synchronized handshaking
between the processor and the debugger.
– Bit 1 (W): Denotes whether the programmer can read a data through the Debug
– Bit 0 (R): Denotes whether the programmer can send data from the Debug Comms
Comms Data Register. If the device is busy W = 0, then the programmer must poll
until W = 1.
Data Register. If R = 1, data previously placed there through the scan chain has not
been collected by the device and so the programmer must wait.
r/w
4
Address
Address
Decoder
87. Commands are run by the programmer through the serial interface that
5
0
31
Debug Comms Control Register
Debug Comms Data Register
Data
32
6254C–ATARM–22-Jan-10
0
TDO
Related parts for SAM9XE512
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: