AT32UC3A3128 Atmel Corporation, AT32UC3A3128 Datasheet - Page 37

• Manufacturer Part Number: AT32UC3A3128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A3128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 110
• Ext Interrupts: 110
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Sd / Emmc: 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
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 12
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table 5-2.
5.4
32072G–11/2011
CPU Local Bus Mapping
Peripheral Address Mapping
0xFFFF5000
0xFFFF5400
Some of the registers in the GPIO module are mapped onto the CPU local bus, in addition to
being mapped on the Peripheral Bus. These registers can therefore be reached both by
accesses on the Peripheral Bus, and by accesses on the local bus.
Mapping these registers on the local bus allows cycle-deterministic toggling of GPIO pins since
the CPU and GPIO are the only modules connected to this bus. Also, since the local bus runs at
CPU speed, one write or read operation can be performed per clock cycle to the local bus-
mapped GPIO registers.
The following GPIO registers are mapped on the local bus:
Table 5-3.
Port
0
1
Register
Output Driver Enable Register (ODER)
Output Value Register (OVR)
Pin Value Register (PVR)
Output Driver Enable Register (ODER)
Output Value Register (OVR)
Pin Value Register (PVR)
Local Bus Mapped GPIO Registers
TWIS0
TWIS1
Two-wire Slave Interface - TWIS0
Two-wire Slave Interface - TWIS1
Mode
WRITE
SET
CLEAR
TOGGLE
WRITE
SET
CLEAR
TOGGLE
-
WRITE
SET
CLEAR
TOGGLE
WRITE
SET
CLEAR
TOGGLE
-
Local Bus
Address
0x40000040
0x40000044
0x40000048
0x4000004C
0x40000050
0x40000054
0x40000058
0x4000005C
0x40000060
0x40000140
0x40000144
0x40000148
0x4000014C
0x40000150
0x40000154
0x40000158
0x4000015C
0x40000160
Access
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Read-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Read-only
37