MPC5125YVN400 Freescale Semiconductor, MPC5125YVN400 Datasheet - Page 989

• 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

The ZLT bit in the dTD operates as following on BULK and control transfers:
ZLT = 0, the default value, means that the zero length termination is active. With the ZLT option enabled,
when the device is transmitting, the hardware automatically appends a zero packet length when the
following conditions are true:
After this the dTD is retired. When the device is receiving, if the last packet length received equal
maximum packet length and the total bytes is zero, it waits for a zero length packet from the host to retire
the current dTD.
ZLT = 1, means the zero length termination is inactive. With the ZLT option disabled, when the device is
transmitting, the hardware does not append any zero length packet. When receiving, it does not require a
zero length packet to retire a dTD whose last packet was equal to the maximum packet length packet.
The dTD is retired as soon as Total Bytes field goes to zero, or a short packet is received.
Each transfer is defined by one dTD, so the zero length termination is for each dTD.
In some software application cases, the logic transfer does not fit into one dTD, so it does not make sense
to add a Zero Length Termination packet each time a dTD is consumed. On those cases, it is recommended
to turn off this ZLT feature and use software to generate the zero length termination.
TX-dTD is complete when:
Freescale Semiconductor
•
•
The packet transmitted equals maximum packet length.
The dTD has exhausted the field Total Bytes
The MULT field in the dQH must be set to 00 for bulk, interrupt, and control
endpoints.
Table 32-92. Variable Length Transfer Protocol Example (ZLT = 0)
Table 32-93. Variable Length Transfer Protocol Example (ZLT = 1)
Bytes (dTD)
Bytes (dTD)
511
512
512
511
512
512
MPC5125 Microcontroller Reference Manual, Rev. 2
Length (dQH)
Length (dQH)
Max. Packet
Max. Packet
256
256
512
256
256
512
NOTE
N
N
2
3
2
2
2
1
Universal Serial Bus Interface with On-The-Go
256
256
512
256
256
512
P1
P1
255
256
255
256
P2
P2
0
P3
P3
0
32-161