AT90USB162-16MU Atmel, AT90USB162-16MU Datasheet - Page 182

• Manufacturer Part Number: AT90USB162-16MU
• Description: MCU AVR USB 16K FLASH 32-QFN
• Manufacturer: Atmel
• Series: AVR® 90USBr

Specifications of AT90USB162-16MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, PS/2, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFN
• Controller Family/series: AVR USB
• No. Of I/o's: 22
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• Processor Series: AT90USBx
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI, USART, debugWIRE
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATSTK525, ATSTK526, ATAVRISP2, ATAVRONEKIT, AT90USBKEY, ATEVK525
• Minimum Operating Temperature: - 40 C
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK526 - KIT STARTER FOR AT90USB82/162ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK525 - KIT STARTER FOR AT90USBAT90USBKEY2 - KIT DEMO FOR AT90USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

General Operating
Modes
Introduction
Power-on and reset
Interrupts
182
The USB controller is disabled and reset after a hardware reset generated by:
But another available and optionnal reset source is :
In this case, the USB controller is reset, but not disabled (so that the device remains attached).
The next diagram explains the USB controller main states on power-on:
Figure 78. USB controller states after reset
When the USB controller is in reset state:
•
•
•
•
•
•
•
After setting USBE, the USB Controller enters in the Device state.
The USB Controller can at any time be ‘stopped’ by clearing USBE. In fact, clearing USBE acts
as an hardware reset on the USB macro.
Two interrupts vectors are assigned to USB controller.
–
–
–
–
–
–
USBE is not set
the USB controller clock is stopped in order to minimize the power consumption
(FRZCLK=1),
the USB controller is disabled,
USB is in the suspend mode,
the Device USB controllers internal state is reset.
The DPACC bit and the DPADD10:0 field can be set by software. The DPRAM is not
cleared.
The SPDCONF bits can be set by software.
Power on reset
External reset
Watchdog reset
Brown out reset
debugWIRE reset
USB End Of Reset
Clock stopped
Dev ice
FRZCLK=1
Macro off
USBE=1
HW RESET from EOR
USBE=0
Reset
USBE=0
(excepted from EOR)
HW RESET
USBE=0
<any other
state>
7707A–AVR–01/07