MMC2107CFCPV33 Freescale Semiconductor, MMC2107CFCPV33 Datasheet - Page 200

• Manufacturer Part Number: MMC2107CFCPV33
• Description: IC MCU 33MHZ 128K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCorer

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

Non-Volatile Memory FLASH (CMFR)
Technical Data
200
NOTE:
CLKPM[6:0] — Clock Period Multiplier Field
The CLKPM[6:0] bits are not write protected by the SES bit. Unless the
PAWS[2] bit is set, writes to CLKPM[6:0] in software should not be
changed if SES = 1.
No.
1
2
3
4
The third term of the timing control is the linear clock multiplier, M. The
clock period multiplier, CLKPM[6:0], defines a linear multiplier for the
program or erase pulse. M is defined by:
This allows the program/erase pulse to be from 1 to 128 times the
pulse set by the system clock period, SCLKR[2:0] and CLKPE[1:0].
The default reset state of CLKPM[6:0] is binary 000 0000, which gives
a multiplier of 1.
Table 9-6
CLKPE[1:0] and CLKPM[6:0] for a 1-ms program pulse, ERASE = 0,
in a system with a 33.0-MHz system clock having a period of 30.3 ns.
Freescale Semiconductor, Inc.
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Determine SCLKR[2:0] —
Determine CLKPE[1:0] —
Determine CLKPM[6:0] — Using the selected values of N and R in the pulse
Check the results — pulse width = 30.3 ns
and an R value of 3 gives a system clock frequency from 24 MHz to 36 MHz.
ERASE = 0, a 1-ms program pulse can be generated by an N value of 7
(CLKPE[1:0] = 10) or 8 (CLKPE[1:0] = 11). An N value of 8 is used in this
example.
width equation, pulse width = system clock period
for M yields 42.97. Rounding M to 43 and using the M equation,
M = 1 + (CLKPM[6:0]) and solving for CLKPM[6:0] yields 42.
SCLKR[2:0] = 100, CLKPE[1:0] = 11, CLKPM[6:0] = 0101010, ERASE = 0,
system clock frequency = 33.0 MHz
Non-Volatile Memory FLASH (CMFR)
Table 9-6. Determining SCLKR[2:0], CLKPE[1:0],
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shows an example of calculating the values of SCLKR[2:0],
M = 1 + (CLKPM[6:0])
and CLKPM[6:0]
9.7.1 Control Registers
Table 9-4
Example Calculation
shows that a SCLKR[2:0] value of 100
3
2
8
shows that when
43 = 1.00 ms where
R
MMC2107 – Rev. 2.0
2
N
M and solving
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