MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 149
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MC908MR8MPE
Manufacturer Part Number
MC908MR8MPE
Description
IC MCU 8BIT 8K FLASH 28-PDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MC908MR8MPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
12
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 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
NOTE:
For ease of software, the LDFQx bits are buffered. When the LDFQx bits
are changed, the reload frequency will not change until the previous
reload cycle is completed. See
When reading the LDFQx bits, the value is the buffered value (for
example, not necessarily the value being acted upon).
PWMINT enables CPU interrupt requests as shown in
this bit is set, CPU interrupt requests are generated when the PWMF bit
is set. When the PWMINT bit is clear, PWM interrupt requests are
inhibited. PWM reloads will still occur at the reload rate, but no interrupt
requests will be generated.
RELOAD
Pulse-Width Modulator for Motor Control (PWMMC)
Reload Frequency Bits
RELOAD
CHANGE RELOAD
EVERY 4 CYCLES
FREQUENCY TO
LDFQ1:LDFQ0
Figure 9-5. Reload Frequency Change
Table 9-2. PWM Reload Frequency
00
01
10
11
RELOAD
Pulse-Width Modulator for Motor Control (PWMMC)
Figure
CHANGE RELOAD
FREQUENCY TO
EVERY CYCLE
PWM Reload Frequency
9-5.
Every 2 PWM cycles
Every 4 PWM cycles
Every 8 PWM cycles
Every PWM cycle
RELOAD
Figure
RELOAD RELOAD RELOAD
PWM Generators
Technical Data
9-6. When
149
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