MPC5125YVN400 Freescale Semiconductor, MPC5125YVN400 Datasheet - Page 925

• Manufacturer Part Number: MPC5125YVN400
• Description: IC MCU 32BIT E300 324TEPBGA
• Manufacturer: Freescale Semiconductor
• Series: MPC51xxr

Specifications of MPC5125YVN400

• Core Processor: e300
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, USB OTG
• Peripherals: DMA, WDT
• Number Of I /o: 64
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.33 V ~ 1.47 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 324-PBGA
• Processor Series: MPC51xx
• Core: e300
• Data Bus Width: 32 bit
• Development Tools By Supplier: TWR-MPC5125-KIT, TWR-SER, TWR-ELEV, TOWER
• Maximum Clock Frequency: 400 MHz
• Operating Supply Voltage: 1.4 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Data Ram Size: 32 KB
• I/o Voltage: 3.3 V
• Interface Type: CAN, I2C
• Minimum Operating Temperature: - 40 C
• Program Memory Size: 32 bit
• Cpu Speed: 400MHz
• Embedded Interface Type: CAN, I2C, SPI, UART, USB
• Digital Ic Case Style: TEPBGA
• No. Of Pins: 324
• Rohs Compliant: Yes
• Cpu Family: MPC5xx
• Device Core Size: 32b
• Frequency (max): 400MHz
• Total Internal Ram Size: 32KB
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 324
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

This process simply repeats itself each micro-frame.
manage the active and sleep states of the Asynchronous Schedule traversal policy. There are three states:
Actively traversing the Asynchronous schedule, Sleeping, and Not Active. The last two are similar in
terms of interaction with the Asynchronous schedule, but the Not Active state means that the host
controller is busy with the Periodic schedule or the Asynchronous schedule is not enabled. The Sleeping
state is a special state where the host controller is waiting for a period of time before resuming execution
of the Asynchronous schedule.
Async Sched Not Active
This is the initial state of the traversal state machine after a host controller reset. The traversal state
machine does not leave this state when the Asynchronous Schedule Enable bit in the USB_USBCMD
register is a zero.
This state is entered from Async Sched Active or Async Sched Sleeping states when the
end-of-micro-frame event is detected.
Freescale Semiconductor
(Periodic Schedule Complete
Async Schedule Enabled)
Figure 32-59. Example State Machine for Managing Asynchronous Schedule Traversal
Action
A
B
C
and
Table 32-71. Asynchronous Schedule State Machine Transition Actions
On detection of the empty list, the host controller sets the AsynchronousTraversalSleepTimer
to AsyncSchedSleepTime.
When the AsynchronousTraversalSleepTimer expires, the host controller sets the
Reclamation bit in the USB_USBSTS register to a one and moves the Nak Counter reload
state machine to WaitForListHead (see
Counter”).
The host controller cancels the sleep timer (AsynchronousTraversalSleepTimer).
MPC5125 Microcontroller Reference Manual, Rev. 2
Active Sched
Active Sched
Non Active
Active
Action Description Label
Figure 32-59
Section 32.6.8, “Operational Model for NAK
Sleep Timer Expires => B
Empty List => A
End Of micro-frame => C
End Of Microframe
illustrates a sample state machine to
Universal Serial Bus Interface with On-The-Go
Async Sched
Sleeping
32-97