SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 138

• Manufacturer Part Number: SAM7SE256
• Manufacturer: Atmel Corporation

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

21.4
21.4.1
Table 21-3.
138
Pin
Controller
D0 - D7
D8 - D15
D16 - D31
A0/NBS0
A1/NBS2
A2 - A9
A10
A11
SDA10
A12
A13 - A14
A15
A16/BA0
A17/BA1
Application Example
SAM7SE512/256/32
Hardware Interface
EBI Pins and External Static Device Connections
8-bit Static
A13 - A14
D0 - D7
Device
A2 - A9
The connection of some signals through the Mux logic is not direct and depends on the Memory
Controller in use at the moment.
Table 21-2
Table 21-2.
Table 21-3
for each Memory Controller
A10
A11
A12
A15
A16
A17
A0
A1
–
–
–
EBI Pins
NWR1/NBS1/CFIOR
A0/NBS0
A1/NBS2
A[11:2]
SDA10
A12
A[14:13]
A[22:15]
D[31:16]
D[15:0]
A12 - A13
2 x 8-bit
Devices
D8 - D15
details the connections between the two Memory Controllers and the EBI pins.
details the connections to be applied between the EBI pins and the external devices
D0 - D7
A1 - A8
Static
SMC
A10
A11
A14
A15
A16
A0
A9
–
–
–
EBI Pins and Memory Controllers I/O Lines Connections
A12 - A13
D8 - D15
D0 - D7
Device
A1 - A8
16-bit
Static
NLB
A10
A11
A14
A15
A16
A0
A9
–
–
Pins of the Interfaced Device
SDRAMC I/O Lines
NBS1
Not Supported
Not Supported
A[9:0]
A10
Not Supported
A[12:11]
Not Supported
D[31:16]
D[15:0]
SDRAM
SDRAMC
D16 - D31
A11 - A12
D8 - D15
D0 - D7
A0 - A7
DQM0
DQM2
A10
BA0
BA1
A8
A9
–
–
(1)
CompactFlash
D0 - D7
D8 - 15
A2 - A9
A10
A0
A1
–
–
–
–
–
–
–
–
SMC I/O Lines
NWR1/NUB
A0/NLB
A1
A[11:2]
Not Supported
A12
A[14:13]
A[22:15]
Not Supported
D[15:0]
True IDE Mode
CompactFlash
SMC
D0 - D7
A2 - A9
D8 - 15
A10
A0
A1
–
–
–
–
–
–
–
–
6222F–ATARM–14-Jan-11
I/O8 - I/O15
I/O0 - I/O7
Flash
NAND
–
–
–
–
–
–
–
–
–
–
–
–
(2)
(3)