MPC5125YVN400 Freescale Semiconductor, MPC5125YVN400 Datasheet - Page 761

• 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

27.3.2.11 RTC Keep Alive Register (RTC_KAR)
The RTC Keep Alive Register (RTC_KAR) contains a unique 9-bit breadcrumb register (BC_[0-8]),
which can also function as a 5-bit wakeup source register (GPIO[01:03] and CAN[1:2]_RX) and a 4-bit
breadcrumb register (BC_[5-8]). Each bit that functions as a wakeup source can also function as a
breadcrumb bit. This register also contains a dedicated wakeup source register (GPIO00).
Breadcrumb bits are generally used to hold status words or information that is user defined. As long as
V
user defined information about what process should be executed upon exiting the HIBERNATE mode.
Freescale Semiconductor
Address: Base + 0x28
BAT
Reset
Reset
Field
ATC
is powered, this register retains its contents. One purpose for the breadcrumb bits might be to hold
W
W w1c
R
R WU_
SRC_
16
0
0
0
0
0
This register is set to 0xFFFF_FFFE when V
removed and later connected, the register is again set to 0xFFFF_FFFE.
The contents of this register cannot be modified by software. After V
connected, this register increments at a 1 Hz rate starting from
0xFFFF_FFFE.
When writing to the RTC keep alive register, do not modify any of the
WU_SRC_[1:5]_EN bits in the same instruction that modifies any of the
WU_SRC_[1:5]_LVL bits. Use one instruction to modify the
WU_SRC_[1:5]_LVL bits and a second instruction to modify the
WU_SRC_[1:5]_EN bits.
The time, in seconds, since V
17
0
0
0
1
BC_7
18
0
0
2
WU_SRC_[1:5]
Figure 27-12. RTC Keep Alive Register (RTC_KAR)
19
0
0
3
MPC5125 Microcontroller Reference Manual, Rev. 2
Table 27-12. RTC_ATC field descriptions
WU_SRC_[1:5]_EN
20
4
0
0
BAT
21
0
0
5
was last connected.
BC_5 BC_6
22
0
0
6
NOTE
NOTE
23
0
0
7
Description
MODE
DIS_
HIB_
24
8
0
0
1
BAT
is applied. If V
25
9
0
0
0
0
BC_8
10
26
0
0
0
11
27
0
0
0
BAT
WU_SRC_[1:5]_LVL
12
28
0
0
0
BAT
is
Access: User read/write
Real Time Clock (RTC)
MODE
SRC_
is
WU_
w1c
13
29
0
1
TAMP
w1c
14
30
0
1
TTR_
CMP
27-13
w1c
15
31
0
1