MCF5253CVM140 Freescale Semiconductor, MCF5253CVM140 Datasheet - Page 219

• Manufacturer Part Number: MCF5253CVM140
• Description: IC MPU 32BIT 140MHZ 225-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253CVM140

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 225-MAPBGA
• Family Name: MCF5xxx
• Device Core: ColdFire V2
• Device Core Size: 32b
• Frequency (max): 140MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.2/3.3V
• Operating Supply Voltage (max): 1.32/3.6V
• Operating Supply Voltage (min): 1.08/3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 225
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

13.5.5.1
In the timing diagram, the assumption is made that the processor reads the full receive buffer register
before the next 32 bits are received. If this is not the case, the Flash Media interface will stop the outgoing
sclk clock, which prevents data overrun.
Freescale Semiconductor
RCV_DATA_REG_FULL
write to CMD register
WRITE TO CMD REGISTER
rcv_data_reg_full
BITCOUNTER
SHIFT_BUSY
SCLKOUT
BS_PIN
sclk_out
bitcounter
SDIO_OUT
sdio_out
SDIO_IN
bs_pin
sdio_in
shift_busy
Reading Data from the Memory Stick
0
NO
48
Figure 13-18. Reading Data from Memory Stick Timing
Memory Stick interface timing diagram for cmd_reg(19:16) = 0001
(Read data from stick)
read bit crc_is_0 in status reg
Figure 13-17. Reading Data from Memory Stick
rcv_data_reg full ?
read rcv_data_reg
end
MCF5253 Reference Manual, Rev. 1
YES
47
YES
write cmd_reg(19:16) = 0001
write cmd_reg(15:0) : no. of bits to read from stick
write cmd_reg(20): new value on BS pin
write cmd_reg(21): 0
46
cmd_reg(15:0) = 0 ? or
fall. edge on shiftBusy ?
47
rcv_data_reg full ?
read rcv_data_reg
45
33
NO
YES
33
32
32
31
31
NO
30
IDE and Flash Media Interface
1
1
0
0
13-21