MPC5125YVN400 Freescale Semiconductor, MPC5125YVN400 Datasheet - Page 787

• 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

28.3.2.8
The SDHC Number of Blocks (SDHC_NOB) register defines the number of blocks in the block transfer
mode. This register and the Block Length Register determines the number of bytes to be transferred during
one command. The number decrements every time a block transfer completes and stops when the count
reaches zero. When all data transfers are completed, the STATUS[READ_OP_DONE] is set if it is a read
(from card) transfer, or the STATUS[WRITE_OP_DONE] is set if it is a write (to card) transfer.
Software should write to this register only when no MMC/SD transaction is executing.
The maximum data size to be transferred in bytes equals the block length multiplied by the number of
blocks.
Figure 28-9
Freescale Semiconductor
LENGTH
BLOCK
Field
shows the SDHC_NOB register and
SDHC Number of Blocks (SDHC_NOB) Register
Block Length. Specifies the number of bytes in a block during data transfer (block size). For MMC and SD
cards, the value set must remain the same as the Balkan set in the CARD. For SDIO, IO access is performed
through the CMD53 IO_RW_EXTEND command. Command has two modes:
For multi-block data transfers, a block length equal to an integer multiple of the data buffer size is preferred.
Otherwise, buffer utilization is poor. If the data size that needs to be transferred is not an integer multiple of
the buffer size, there are two options to transfer the data:
The data buffer size is 64 bytes in 4-bit mode and 16 bytes in 1-bit mode. Refer to
Buffers,”
0x000 0 byte
0x001 1 byte
...
...
0x7FF 2047 bytes
0x800 2048 bytes
0x801~0xFFF Reserved
• Byte mode. For byte mode, its operation is similar to a single block transfer command for SD where the
• Block mode. For block mode, its operation is similar to a multi-block transfer command for the SD where
• Option 1: Split the transaction. The remainder of block size data is transferred by using a single block
• Option 2: Add filler data in the last block to fill the block size to be as large as the buffer size.
block length is the byte count in the command argument.
the block length is the block size defined in the command argument.
command for the last transfer.
for more information about data buffer.
Table 28-10. SDHC_BLK_LEN field descriptions
MPC5125 Microcontroller Reference Manual, Rev. 2
Table 28-11
Description
describes the bit fields.
Secure Digital Host Controller (SDHC)
Section 28.4.1, “Data
28-15