MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 172
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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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Pulse-Width Modulator for Motor Control
9.12 Control Logic Block
9.12.1 PWM Counter Registers
Technical Data
172
This subsection provides a description of the control logic block.
The PWM counter registers (PCNTH and PCNTL) display the12-bit
up/down or up-only counter. When the high byte of the counter is read,
the lower byte is latched. PCNTL will hold this latched value until it is
read.
Reset:
Reset:
dress:
dress:
Read:
Read:
Write:
Write:
Pulse-Width Modulator for Motor Control (PWMMC)
Ad-
Ad-
$0026
$0027
Figure 9-29. PWM Counter Register High (PCNTH)
Figure 9-30. PWM Counter Register Low (PCNTH)
Bit 7
Bit 7
Bit 7
0
0
0
= Unimplemented
= Unimplemented
Bit 6
6
0
0
6
0
Bit 5
5
0
0
5
0
Bit 4
4
0
0
4
0
Bit11
Bit 3
3
0
3
0
MC68HC908MR8 — Rev 4.1
Bit 10
Bit 2
Freescale Semiconductor
2
0
2
0
Bit 9
Bit 1
1
0
1
0
Bit 0
Bit 8
Bit 0
Bit 0
0
0
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