AT32AP7002-CTUT Atmel, AT32AP7002-CTUT Datasheet - Page 607

• Manufacturer Part Number: AT32AP7002-CTUT
• Description: IC MCU 32BIT AVR32 196-CBGA
• Manufacturer: Atmel
• Series: AVR®32 AP7r

Specifications of AT32AP7002-CTUT

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 150MHz
• Connectivity: EBI/EMI, I²C, MMC, PS2, SPI, SSC, UART/USART, USB
• Peripherals: AC'97, DMA, I²C, LCD, POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: D/A 2x16b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 196-CBGA
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C, JTAG, PS2, SPI, SSC, UART, USART, USB
• Maximum Clock Frequency: 150 MHz
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Dac: 16 bit, 2 Channel
• Package: 196CTBGA
• Device Core: AVR32
• Family Name: AT32
• Maximum Speed: 150 MHz
• Operating Supply Voltage: 1.8|3.3 V
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATNGW100 - KIT AVR32 NETWORK GATEWAYATSTK1000 - KIT STARTER FOR AVR32AP7000
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

31.6.6.2
Figure 31-6. NYET Example with Two Endpoint Banks
32054F–AVR32–09/09
t = 0
data 0 ACK
NYET
Bank 1
Bank 0
t = 125 µs
E
F
data 1 NYET
When a valid setup packet is accepted by the USBA:
• the USBA device automatically acknowledges the setup packet (sends an ACK response)
• payload data is written in the endpoint
• sets the RX_SETUP interrupt
• the BYTE_COUNT field in the EPTSTAx register is updated
An endpoint interrupt is generated while RX_SETUP in the EPTSTAx register is not cleared.
This interrupt is carried out to the microcontroller if interrupts are enabled for this endpoint.
Thus, firmware must detect RX_SETUP polling EPTSTAx or catching an interrupt, read the
setup packet in the FIFO, then clear the RX_SETUP bit in the EPTCLRSTA register to acknowl-
edge the setup stage.
If STALL_SNT was set to 1, then this bit is automatically reset when a setup token is detected by
the device. Then, the device still accepts the setup stage. (See
page
NYET is a High Speed only handshake. It is returned by a High Speed endpoint as part of the
PING protocol.
High Speed devices must support an improved NAK mechanism for Bulk OUT and control end-
points (except setup stage). This mechanism allows the device to tell the host whether it has
sufficient endpoint space for the next OUT transfer (see USB 2.0 spec 8.5.1 NAK Limiting via
Ping Flow Control).
The NYET/ACK response to a High Speed Bulk OUT transfer and the PING response are auto-
matically handled by hardware in the EPTCTLx register (except when the user wants to force a
NAK response by using the NYET_DIS bit).
If the endpoint responds instead to the OUT/DATA transaction with an NYET handshake, this
means that the endpoint accepted the data but does not have room for another data payload.
The host controller must return to using a PING token until the endpoint indicates it has space
available.
Bank 1
Bank 0
618).
t = 250 µs
E'
F
Bank 1
Bank 0
PING ACK
F
E
t = 375 µs
Bank 1
Bank 0
data 0 NYET
F
E
Bank 1
Bank 0
t = 500 µs
F
F
PING NACK
Bank 1
Bank 0
E'
F
t = 625 µs
Bank 1
Bank 0
PING ACK
Section 31.6.6.15 ”STALL” on
E
F
E: empty
E': begin to empty
F: full
AT32AP7002
607