AT90USB162 Atmel Corporation, AT90USB162 Datasheet - Page 194

• Manufacturer Part Number: AT90USB162
• Manufacturer: Atmel Corporation

Specifications of AT90USB162

• Flash (kbytes): 16 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 22
• Ext Interrupts: 21
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 5
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

19.9.2
19.10 USB Software Operating modes
194
AT90USB82/162
USB/PS2 Software Output Enable register – UPOE
• 7-0 – DPADD7:0: DPRAM Address Low Bit
DAPDD7:0 is the least significant part of DPADD.
• Bit 7:6 – UPOE[1:0]: USB/PS2 Output enable
Set these bits with the following configuration to enable or disable the USB/PS2 software drive.
UPOE1 - UPOE0
0 - 0 : Direct drive is disabled.
0 - 1 : Reserved
1 - 0 : Direct drive of DP/DM with USB levels (UPDRV[1:0] values)
1 - 1 : Direct drive of DP/DM with PS/2 levels (UPDRV[1:0] values)
• Bit 5:4 – UPDRV[1:0] : USB/PS2 direct drive values
Write in UPDRV1 the value to write on D+/SCK following the UPOE[1:0] configuration.
Write in UPDRV0 the value to write on D-/DATA following the UPOE[1:0] configuration.
• Bit 3 – SCKI : SCK Input value
This bit is set to one by hardware if a ‘1’ is read on SCK (PS/2 pad).
This bit is set to zero by hardware if a ‘0’ is read on SCK (PS/2 pad).
• Bit 2 – DATAI : DATA Input value
This bit is set to one by hardware if a ‘1’ is read on DATA (PS/2 pad).
This bit is set to zero by hardware if a ‘0’ is read on DATA (PS/2 pad).
• Bit 1 – DPI : D+ Input value
This bit is set to one by hardware if a ‘1’ is read on D+ (USB pad).
This bit is set to zero by hardware if a ‘0’ is read on D+ (USB pad).
• Bit 0 – DMI : D- Input value
This bit is set to one by hardware if a ‘1’ is read on D- (USB pad).
This bit is set to zero by hardware if a ‘0’ is read on D- (USB pad).
Depending on the USB operating mode, the software should perform some the following
operations:
Power On the USB interface
Bit
Read/Write
Initial Value
• Configure PLL interface
• Enable PLL
• Check PLL lock
7
UPWE1
R/W
0
6
UPWE0
R/W
0
5
UPDRV1
R/W
0
4
UPDRV0
R/W
0
3
SCKI
R
0
2
DATAI
R
0
1
DPI
R
0
0
DMI
R
0
7707F–AVR–11/10
UPOE