MC68HC908MR16CFU Freescale Semiconductor, MC68HC908MR16CFU Datasheet - Page 74

• Manufacturer Part Number: MC68HC908MR16CFU
• Description: IC MCU 8MHZ 16K FLASH 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR16CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 44
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Configuration Register (CONFIG)
5.3 Configuration Register
EDGE — Edge-Align Enable Bit
BOTNEG — Bottom-Side PWM Polarity Bit
TOPNEG — Top-Side PWM Polarity Bit
INDEP — Independent Mode Enable Bit
LVIRST — LVI Reset Enable Bit
LVIPWR — LVI Power Enable Bit
STOPE — Stop Enable Bit
COPD — COP Disable Bit
74
EDGE determines if the motor control PWM will operate in edge-aligned mode or center-aligned mode.
See
BOTNEG determines if the bottom-side PWMs will have positive or negative polarity. See
Pulse-Width Modulator for Motor Control
TOPNEG determines if the top-side PWMs will have positive or negative polarity. See
Pulse-Width Modulator for Motor Control
INDEP determines if the motor control PWMs will be six independent PWMs or three complementary
PWM pairs. See
LVIRST enables the reset signal from the LVI module. See
Chapter 9 Low-Voltage Inhibit
LVIPWR enables the LVI module.
Writing a 0 or a 1 to bit 1 has no effect on MCU operation. Bit 1 operates the same as the other bits
within this write-once register operate.
COPD disables the COP module. See
1 = Edge-aligned mode enabled
0 = Center-aligned mode enabled
1 = Negative polarity
0 = Positive polarity
1 = Negative polarity
0 = Positive polarity
1 = Six independent PWMs
0 = Three complementary PWM pairs
1 = LVI module resets enabled
0 = LVI module resets disabled
1 = LVI module power enabled
0 = LVI module power disabled
1 = STOP mode enabled
0 = STOP mode disabled
1 = COP module disabled
0 = COP module enabled
Chapter 12 Pulse-Width Modulator for Motor Control
Address:
Reset:
Read:
Write:
Chapter 12 Pulse-Width Modulator for Motor Control
$001F
EDGE
Bit 7
0
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Figure 5-1. Configuration Register (CONFIG)
BOTNEG
6
0
(LVI).
Chapter 9 Low-Voltage Inhibit (LVI)
TOPNEG
5
0
Chapter 6 Computer Operating Properly
(PWMMC).
(PWMMC).
INDEP
4
0
LVIRST
3
1
(PWMMC).
LVIPWR
2
1
(PWMMC).
STOPE
1
0
(COP).
Freescale Semiconductor
COPD
Bit 0
0
Chapter 12
Chapter 12