MPC5125YVN400 Freescale Semiconductor, MPC5125YVN400 Datasheet - Page 493

• 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

Chapter 19
2
Inter-Integrated Circuit (I
C)
19.1
Overview
2
The Inter-Integrated Circuit (I
C) interface is a two-wire, bidirectional serial bus that provides a simple,
efficient method for data exchange among devices. The MPC5125 contains three identical and
independent I2C modules.
2
2
The I
C module operates up to a maximum bus load and timing of 400 kbit/s. Also, I
C modules are
capable of operating at higher baud rates, up to a maximum frequency equal to IPS_clock/20 with reduced
bus loading (where, the value 20 is the minimum SCL Divider in the block).
A maximum bus capacitance of 400 pF limits the maximum communication length and number of
possibly connected devices. The module can operate as fast as 400 kbit/s. This bus is suitable for
applications requiring occasional communications over a short distance among a number of devices. It also
provides flexibility, allowing more devices to be connected to the bus for further expansion and system
development.
2
I
C is a true multi-master bus including collision detection and arbitration to prevent data corruption if
two or more masters attempt to control the bus simultaneously. This feature provides the capability for
complex applications with multi-processor control. It may also be used for rapid testing and alignment of
end products via external connections to an assembly-line computer.
Figure 19-1
shows a block diagram
2
of the I
C module.
MPC5125 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
19-1