AT90USB1287 Atmel Corporation, AT90USB1287 Datasheet - Page 365

• 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

7593K–AVR–11/09
Table 28-10.
Note:
See
Z-pointer during Self-Programming.
Variable
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
ZPAGEMSB
PAGEMSB
PCWORD
ZPCMSB
PCPAGE
PCMSB
“Addressing the Flash During Self-Programming” on page 357
1. Z0: should be zero for all SPM commands, byte select for the (E)LPM instruction.
Explanation of different variables used in
pointer
PC[16:7]
PC[15:7]
PC[6:0]
PC[6:0]
15
6
6
Corresponding
Z-value
Z17:Z8
Z16:Z7
Z7:Z1
Z7:Z1
Z17
Z16
Z7
Z7
Description
Most significant bit which is used to address the
words within one page (128 words in a page requires
seven bits PC [6:0]).
Bit in Z-pointer that is mapped to PCMSB. Because
Z0 is not used, the ZPCMSB equals PCMSB + 1.
Bit in Z-pointer that is mapped to PCMSB. Because
Z0 is not used, the ZPAGEMSB equals PAGEMSB +
1.
Program Counter page address: Page select, for
Page Erase and Page Write
Program Counter word address: Word select, for
filling temporary buffer (must be zero during Page
Write operation)
Most significant bit in the program counter. (The program
counter is 16 bits PC[15:0])
Most significant bit which is used to address the words
within one page (128 words in a page requires 7 bits PC
[6:0]).
Bit in Z-register that is mapped to PCMSB. Because Z0 is
not used, the ZPCMSB equals PCMSB + 1.
Bit in Z-register that is mapped to PAGEMSB. Because Z0
is not used, the ZPAGEMSB equals PAGEMSB + 1.
Program counter page address: Page select, for Page
Erase and Page Write.
Program counter word address: Word select, for filling
temporary buffer (must be zero during PAGE WRITE
operation).
Figure 28-4
(1)
AT90USB64/128
and the mapping to the Z-
for details about the use of
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