MCF5272CVF66J Freescale Semiconductor, MCF5272CVF66J Datasheet - Page 343

• Manufacturer Part Number: MCF5272CVF66J
• Description: IC MCU 166MHZ 196MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5272CVF66J

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
• Peripherals: DMA, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (4K x 32)
• Program Memory Type: ROM
• Ram Size: 1K x 32
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 196-MAPBGA
• Processor Series: MCF527x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
• Leaded Process Compatible: No
• Rohs Compliant: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No

A write to QDR causes data to be written to the RAM entry specified by QAR[ADDR] and causes the
value in QAR to increment. Correspondingly, a read at QDR returns the data in the RAM at the address
specified by QAR[ADDR]. This also causes QAR to increment. A read access requires a single wait state.
14.4.1.1
Data received by the QSPI is stored in the receive RAM segment located at 0x10 to 0x1F in the QSPI RAM
space. The user reads this segment to retrieve data from the QSPI. Data words with less than 16 bits are
stored in the least significant bits of the RAM. Unused bits in a receive queue entry are set to zero upon
completion of the individual queue entry.
QWR[CPTQP] shows which queue entries have been executed. The user can query this field to determine
which locations in receive RAM contain valid data.
Freescale Semiconductor
Receive RAM
Throughout ColdFire documentation, ‘word’ is used consistently and
exclusively to designate a 16-bit data unit. The only exceptions to this
appear in discussions of serial communication modules such as QSPI that
support variable-length data units. To simplify these discussions the
functional unit is referred to as a ‘word’ regardless of length.
MCF5272 ColdFire
0x21
Address
Relative
0x00
0x01
0x0F
0x10
0x11
0x1F
0x20
0x2F
.
.
.
.
.
.
.
.
.
Figure 14-2. QSPI RAM Model
®
Integrated Microprocessor User’s Manual, Rev. 3
QTR0
QTR1
.
.
QTR15
QRR0
QRR1
.
.
.
QRR15
QCR0
QCR1
.
.
.
QCR15
Register
NOTE
.
Transmit RAM
16 bits wide
Receive RAM
16 bits wide
Command RAM
8 bits wide
Function
Queued Serial Peripheral Interface (QSPI) Module
14-5