AT90USB1287 Atmel Corporation, AT90USB1287 Datasheet - Page 83

• Manufacturer Part Number: AT90USB1287
• Manufacturer: Atmel Corporation

Specifications of AT90USB1287

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 48
• Ext Interrupts: 16
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Eeprom (bytes): 4096
• 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: 4
• Output Compare Channels: 10
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

10.3.4
7593K–AVR–11/09
Alternate Functions of Port C
The Port C alternate function is as follows:
Table 10-9.
Table 10-10
shown in
Table 10-10. Overriding Signals for Alternate Functions in PC7..PC4
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Figure 10-5 on page
Port Pin
PC7/A15/IC.3/CLK
O
SRE • (XMM<1)
0
SRE • (XMM<1)
1
SRE • (XMM<1)
A15
0
0
ICP3 input
–
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
and
Port C Pins Alternate Functions
Table 10-11
77.
relate the alternate functions of Port C to the overriding signals
Alternate Function
A15/IC.3/CLKO(External Memory interface address bit 15 or
Input Capture Timer 3 or CLKO (Divided System Clock)
A14/OC.3A(External Memory interface address bit 14 or
Output Compare and PWM output A for Timer/Counter3)
A13/OC.3B(External Memory interface address bit 13 or
Output Compare and PWM output B for Timer/Counter3)
A12/OC.3C(External Memory interface address bit 12 or
Output Compare and PWM output C for Timer/Counter3)
A11/T.3(External Memory interface address bit 11or
Timer/Counter3 Clok Input)
A10(External Memory interface address bit 10)
A9(External Memory interface address bit 9)
A8(External Memory interface address bit 8)
PC6/A14/OC.3A
SRE •
(XMM<2)|OC3A
enable
0
SRE • (XMM<2)
1
SRE • (XMM<2)
if (SRE.XMM<2)
then A14
else OC3A
0
0
–
–
PC5/A13/OC.3B
SRE •
(XMM<3)|OC3B
enable
0
SRE • (XMM<3)
1
SRE • (XMM<3)
if (SRE.XMM<2)
then A13
else OC3B
0
0
–
–
AT90USB64/128
PC4/A12/OC.3C
SRE •
(XMM<4)|OC3C
enable
0
SRE • (XMM<4)
1
SRE • (XMM<4)
if (SRE.XMM<2)
then A12
else OC3C
0
0
–
–
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