MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 422

• Manufacturer Part Number: MCF5270CAB100
• Description: MCU V2 COLDFIRE 64K SRAM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5270CAB100

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 160-QFP
• Processor Series: MCF527x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Queued Serial Peripheral Interface (QSPI) Module
23.1.3.1 Interface and Signals
The module provides access to as many as 15 devices with a total of seven signals: QSPI_DOUT,
QSPI_DIN, QSPI_CLK, QSPI_CS0, QSPI_CS1, QSPI_CS2, and QSPI_CS3.
Peripheral chip-select signals, QSPI_CS[3:0], are used to select an external device as the source
or destination for serial data transfer. Signals are asserted at a logic level corresponding to the
value of the QSPI_CS[3:0] bits in the command RAM whenever a command in the queue is
executed. More than one chip-select signal can be asserted simultaneously.
Although QSPI_CS[3:0] will function as simple chip selects in most applications, up to 15 devices
can be selected by decoding them with an external 4-to-16 decoder.
23-2
Internal Bus
QSPI Data Output (QSPI_DOUT)
QSPI Data Input (QSPI_DIN)
Queue Control
Control Logic
Comparator
End Queue
Internal Bus
Clock (f
Table 23-1. QSPI Input and Output Signals and Functions
Counter
Control
Pointer
Pointer
Queue
Block
Status
Delay
Regs
Regs
Signal Name
sys/2
)
Figure 23-1. QSPI Block Diagram
Divide by 2
MCF5271 Reference Manual, Rev. 2
Address
Register
Done
4
QSPI
Logic
Array
4
Configurable
N/A
Hi-Z or Actively Driven
Command
Select
Chip
4
4
Baud Rate
Generator
80-Byte
QSPI
RAM
msb
8/16 Bit Shift Reg.
Rx/Tx Data Reg.
Serial data output from QSPI
Serial data input to QSPI
Function
lsb
4
Register
Freescale Semiconductor
QSPI
Data
QSPI_DIN
QSPI_DOUT
QSPI_CS[3:0]
QSPI_CLK