MC9328MXLVM20R2 Freescale Semiconductor, MC9328MXLVM20R2 Datasheet - Page 65

• Manufacturer Part Number: MC9328MXLVM20R2
• Description: IC MCU I.MX 200MHZ 256-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MXLr

Specifications of MC9328MXLVM20R2

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, I²C, Memory Stick, MMC/SD, SPI, SSI, UART/USART, USB
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 97
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 1.7 V ~ 3.3 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 256-MAPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

4.8
The Memory Stick protocol requires three interface signal line connections for data transfers: MS_BS,
MS_SDIO, and MS_SCLKO. Communication is always initiated by the MSHC and operates the bus in
either four-state or two-state access mode.
The MS_BS signal classifies data on the SDIO into one of four states (BS0, BS1, BS2, or BS3) according
to its attribute and transfer direction. BS0 is the INT transfer state, and during this state no packet
transmissions occur. During the BS1, BS2, and BS3 states, packet communications are executed. The BS1,
BS2, and BS3 states are regarded as one packet length and one communication transfer is always
completed within one packet length (in four-state access mode).
The Memory Stick usually operates in four state access mode and in BS1, BS2, and BS3 bus states. When
an error occurs during packet communication, the mode is shifted to two-state access mode, and the BS0
and BS1 bus states are automatically repeated to avoid a bus collision on the SDIO.
Freescale Semiconductor
DAT[1]
DAT[2]
For 4-bit
For 4-bit
CMD
Memory Stick Host Controller
S
S
Block Data
Block Data
******
E Z Z
E
Z Z L H
L L L L L L L L L L L L L L L L L L L L L H Z S
Figure 49. SDIO ReadWait Timing Diagram
P S T
MC9328MXL Technical Data, Rev. 8
CMD52
CRC
E Z Z
Z
Functional Description and Application Information
S
Block Data
Block Data
******
E
E
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