MCHC908MR8VFAE Freescale Semiconductor, MCHC908MR8VFAE Datasheet - Page 152
MCHC908MR8VFAE
Manufacturer Part Number
MCHC908MR8VFAE
Description
IC MCU 8K FLASH 8MHZ PWM 32-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MCHC908MR8VFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
16
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-LQFP
Processor Series
HC08MR
Core
HC08
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
33
Number Of Timers
4
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05CE
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Price
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Pulse-Width Modulator for Motor Control
9.5.2 PWM Data Overflow and Underflow Conditions
9.6 Output Control
9.6.1 Selecting Six Independent PWMs or Three Complementary PWM Pairs
Technical Data
152
NOTE:
The PWM value registers are 16-bit registers. Although the counter is
only 12 bits, the user may write a 16-bit signed value to a PWM value
register. As shown in
less than or equal to 0, the PWM will be inactive for the entire period.
Conversely, if the PWM value is greater than or equal to the timer
modulus, the PWM will be active for the entire period. Refer to
The terms active and inactive refer to the asserted and negated states
of the PWM signals and should not be confused with the high-
impedance state of the PWM pins.
This subsection discusses output control.
The PWM outputs can be configured as six independent PWM channels
or three complementary channel pairs. The option INDEP determines
which mode is used (see
is chosen, the PWM pins are paired as shown in
of one pair is then determined by one PWM value register. This type of
operation is meant for use in motor drive circuits such as the one in
Figure
PWMVALxH:PWMVALxL
Pulse-Width Modulator for Motor Control (PWMMC)
Table 9-3. PWM Data Overflow and Underflow Conditions
$8000–$FFFF
$0000–$0FFF
$1000–$7FFF
9-12.
Figure 9-3
5.4 CONFIG
Condition
Underflow
Overflow
Normal
and
Figure
Bits). If complementary operation
9-4, if the PWM value is
MC68HC908MR8 — Rev 4.1
Figure
Per registers contents
Freescale Semiconductor
PWM Value Used
9-11. Operation
$FFF
$000
Table
9-3.
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