MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 435
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MCF5270CAB100
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5270CAB100
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Figure 23-10
Freescale Semiconductor
Address
Reset
11–8
Bits
7–0
15
14
13
12
W CONT BITSE
R
—
15
shows the command RAM register.
The command RAM is accessed only using the most significant byte
of QDR and indirect addressing based on QAR[ADDR].
In order to keep the chip selects asserted for all transfers, the
QWR[CSIV] bit must be set to control the level that the chip selects
return to after the first transfer.
QSPI_CS
CONT
BITSE
Name
DSCK
14
—
DT
Figure 23-10. Command RAM Registers (QCR0–QCR15)
—
DT
13
—
Table 23-8. QCR0–QCR15 Field Descriptions
Continuous.
0 Chip selects return to inactive level defined by QWR[CSIV] when transfer is complete.
1 Chip selects remain asserted after the transfer of 16 words of data (see note below).
Bits per transfer enable.
0 Eight bits
1 Number of bits set in QMR[BITS]
Delay after transfer enable.
0 Default reset value.
1 The QSPI provides a variable delay at the end of serial transfer to facilitate interfacing
Chip select to QSPI_CLK delay enable.
0 Chip select valid to QSPI_CLK transition is one-half QSPI_CLK period.
1 QDLYR[QCD] specifies the delay from QSPI_CS valid to QSPI_CLK.
Peripheral chip selects. Used to select an external device for serial data transfer. More than
one chip select may be active at once, and more than one device can be connected to each
chip select. Bits 11–8 map directly to QSPI_CS[3:0], respectively. If it is desired to use
those bits as a chip select value, then an external demultiplexor must be connected to the
QSPI_CS[3:0] pins.
Reserved, should be cleared.
with peripherals that have a latency requirement. The delay between transfers is
determined by QDLYR[DTL].
DSCK
—
12
—
11
MCF5271 Reference Manual, Rev. 2
QSPI_CS
—
10
—
9
NOTE
NOTE
QAR[ADDR]
—
8
Description
—
0
7
—
0
6
—
0
5
—
0
4
Memory Map/Register Definition
—
0
3
—
2
0
—
0
1
—
0
0
23-15
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