MPC5125YVN400 Freescale Semiconductor, MPC5125YVN400 Datasheet - Page 769

• 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

Point C The CPU writes 0x0000_0005 to the time target shadow register. Next, the CPU writes to the RTC
Point D Now, the time target register is greater than the actual time count register. This transfer occurs
Point E V
Point F The GPIO01 is asserted which causes the WU_SRC_1 bit in the RTC Keep Alive Register
Point G The external voltage regulators turn on and apply power to the MPC5125.
Point H The CPU writes a 1 to the WU_SRC_1 bit in the RTC keep alive register to negate this bit.
Point I An internal clear signal clears the WU_SRC_1 bit in the RTC keep alive register. At this time, the
Point J The external voltage regulators turn off and power is removed from the MPC5125.
Point K The actual time count register has incremented to 0x0000_0005 and is equal to the target time
Point L The external voltage regulators turn on and apply power to the MPC5125.
27.4.5
The following is an explanation of
GPIO[01:03] with WU_SRC_MODE disabled.
Freescale Semiconductor
modified with user software. the target time register is less than or equal to the actual time count
register. Under this condition, the HIB_MODE pin sets to a logic 1. If the HIB_MODE pin is
connected to an external power regulator, the regulator is turned on, thus supplying power to the
MPC5125.
keep alive register and enables external wakeup source 1. Then, it enables HIB_MODE function
by clearing the DIS_HIB_MODE bit to zero.
on the next falling edge of the internal 1 Hz clock signal which increments the RTC_ATC value.
Because the time target register value is greater than the actual time count register value, the
HIB_MODE pin is driven to a logic 0. If the HIB_MODE pin is connected to an external power
regulator, the regulator is turned off, thus turning off power to the MPC5125.
(RTC_KAR) to assert. This bit remains asserted, regardless of the logic level on GPIO01, until
software clears the bit by writing a 1 to the WU_SRC_1 bit position. The assertion of GPIO01
causes the HIB_MODE pin to set to a logic 1, thus turning on the external power regulators to the
MPC5125.
WU_SRC_1_EN bit is set, thus enabling GPIO01 events to wakeup the device. Also, the actual
time count register is less than the target time register. Under these conditions, the HIB_MODE
pin clears to a logic 0, thus turning off the external power regulators to the device.
register. On the next negative edge of the 1 kHz clock after the RTC_ATC value is equal to the
RTC_TTR value, the HIB_MODE pin sets to a logic 1 causing the external power regulators to
turn on.
DD_CORE
RTC Response to External Wakeup Sources
It is important to keep track of the values in the target time register and the
actual time count register when enabling and disabling the external wakeup
sources to keep from inadvertently clearing the HIB_MODE pin to a logic
0 and thus turning off the power to the MPC5125.
is turned off in response to the HIB_MODE pin being driven to a logic 0.
MPC5125 Microcontroller Reference Manual, Rev. 2
Figure 27-15
CAUTION
timing diagram illustrating the functionality of detecting
Real Time Clock (RTC)
27-21