MC56F8346VFVER2 Freescale Semiconductor, MC56F8346VFVER2 Datasheet - Page 148

• Manufacturer Part Number: MC56F8346VFVER2
• Description: IC HYBRID CTRLR 16BIT 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8346VFVER2

• Core Processor: 56800
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 62
• Program Memory Size: 136KB (68K x 16)
• Program Memory Type: FLASH
• Ram Size: 6K x 16
• Voltage - Supply (vcc/vdd): 2.25 V ~ 3.6 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 144-LQFP
• For Use With: MC56F8367EVME - EVAL BOARD FOR MC56F83X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

and DCAEO are used to make this duty cycle adjustment where needed.
DCAOE and DCAEO are calculated as follows:
The timing of write cycles is different when WWS = 0 than when WWS > 0. Therefore, some parameters
contain two sets of numbers to account for this difference. Use the “Wait States Configuration” column of
Table 10-16
Note:
148
A0-Axx,CS
DCAOE =
DCAEO =
D0-D15
WR
RD
Note: During read-modify-write instructions and internal instructions, the address lines do not change state.
When multiple lines are given for the same wait state configuration, calculate each and then select the
smallest or most negative.
to make the appropriate selection.
=
=
Example of DCAOE and DCAEO calculation
Assuming prescaler is set for ÷ 1 and prescaler clock is selected by ZSRC, if XTAL duty cycle
ranges between 45% and 60% high:
DCAOE = .50 - .60 = - 0.1
DCAEO = .45 - .50 = - 0.05
0.5 - MAX XTAL duty cycle, if ZSRC selects prescaler clock and the prescaler is set to ÷ 1
0.0 all other cases
MIN XTAL duty cycle - 0.5, if ZSRC selects prescaler clock and the prescaler is set to ÷ 1
0.0 all other cases
t
Figure 10-4 External Memory Interface Timing
WRWR
t
AWR
t
DWR
t
Data Out
DOS
56F8346 Technical Data, Rev. 15
t
WR
t
DOH
t
WAC
t
WRRD
t
ARDA
t
AD
t
ARDD
t
RDD
t
RD
Data In
t
DRD
t
RDA
Freescale Semiconductor
t
RDRD
t
RDWR
Preliminary