MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 114

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Functional Description
The only difference in operation between Sampled, Non-Filtered (3B) and Sampled,
Filtered (4B) is that FILTER_CNT is now greater than 1, which activates filter operation.
3.6.1.5 Windowed Mode (5A and 5B)
The following image illustrates comparator operation in the windowed mode, ignoring
latency of the analog comparator, polarity select and window control block. It also
assumes that the polarity select is set to non-inverting. Note that the analog comparator
output is passed to COUTA only when the WINDOW signal is high.
In actual operation, COUTA may lag the analog inputs by up to one peripheral clock
cycle plus the combinational path delay through the comparator and polarity select logic.
114
M2
M3
M4
M1
P0
P2
P3
P1
PMC[1:0] MMC[1:0]
Figure 3-24. Sampled, Filtered (4B): Sampling Point Internally Derived
Peripheral Clock
FILT_PER
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
EN, PMODE
+
-
Prescaler
Clock
FILT_PER
COS
ACO
Divided
Peripheral
Clock
Window/Sample
Polarity
Select
INV
Preliminary
Internal Bus
Window
Control
WE
0
SE = 1
1
0
FILTER_CNT SE
CGMUX
>0x1
Block
Filter
1
COUT
OPE
COUTA
COUT
(To Other DSC Functions)
IER/F
Interrupt
Control
COS
Freescale Semiconductor
1
0
CMPO to
Pad
CFR/F
IRQ