MMC2107CFCPV33 Freescale Semiconductor, MMC2107CFCPV33 Datasheet - Page 392
MMC2107CFCPV33
Manufacturer Part Number
MMC2107CFCPV33
Description
IC MCU 33MHZ 128K FLASH 144-LQFP
Manufacturer
Freescale Semiconductor
Series
MCorer
Datasheet
1.MMC2107CFCAF33.pdf
(618 pages)
Specifications of MMC2107CFCPV33
Core Processor
M210
Core Size
32-Bit
Speed
33MHz
Connectivity
EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
72
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Data Bus Width
32 bit
Data Ram Size
8 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
33 MHz
Number Of Programmable I/os
32
Number Of Timers
4 bit
Operating Supply Voltage
0 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No RoHS Version Available
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Serial Peripheral Interface Module (SPI)
Technical Data
392
The synchronized SS signal is synchronized to the SPI clock.
Figure 17-13
a full SPI clock cycle late. While the synchronized SS of the slave is high,
writing is allowed even though the SS pin is already low. The write can
change the MISO pin while the master is sampling the MISO line. The
first bit of the transfer may not be stable when the master samples it, so
the byte sent to the master may be corrupted.
Also, if the slave generates a late write, its state machine may not have
time to reset, causing it to incorrectly receive a byte from the master.
This error is most likely when the SCK frequency is half the slave SPI
clock frequency. At other baud rates, the SCK skew is no more than one
SPI clock, and there is more time between the synchronized SS signal
and the first SCK edge. For example, with a SCK frequency one-fourth
Figure 17-13. Transmission Error Due to Master/Slave Clock Skew
Freescale Semiconductor, Inc.
For More Information On This Product,
Serial Peripheral Interface Module (SPI)
Go to: www.freescale.com
shows an example with the synchronized SS signal almost
SS SYNCHRONIZED
SCK (CPOL = 0)
SCK (CPOL = 1)
TO SPI CLOCK
MOSI/MISO
CHANGE O
CHANGE O
SPI CLOCK
SAMPLE I
MOSI PIN
MISO PIN
SS PIN (I)
MISO PIN
SPIDR WRITE
THIS CYCLE
MMC2107 – Rev. 2.0
MOTOROLA
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