MCHC908MR8CFAE Freescale Semiconductor, MCHC908MR8CFAE Datasheet - Page 140

• Manufacturer Part Number: MCHC908MR8CFAE
• Description: IC MCU 8K FLASH 8MHZ PWM 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908MR8CFAE

• 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 ~ 85°C
• Package / Case: 32-LQFP
• Controller Family/series: HC08
• No. Of I/o's: 16
• Ram Memory Size: 256Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Rohs Compliant: Yes
• Processor Series: HC08MR
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 64 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 85 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

Pulse-Width Modulator for Motor Control
9.2 Introduction
Technical Data
140
9.12.5
9.12.6
9.12.7
9.12.8
9.12.9
9.12.10 Fault Acknowledge Register . . . . . . . . . . . . . . . . . . . . . .182
9.12.11 PWM Output Control Register. . . . . . . . . . . . . . . . . . . . .184
9.13
This section describes the pulse-width modulator for motor control
(PWMMC, version A). The MC68HC908MR8 PWM module can
generate three complementary PWM pairs or six independent PWM
signals. These PWM signals can be center-aligned or edge-aligned. A
block diagram of the PWM module is shown in
A 12-bit timer PWM counter is common to all six channels. PWM
resolution is one clock period for edge-aligned operation and two clock
periods for center-aligned operation. The clock period is dependent on
the internal operating frequency (f
The highest resolution for edge-aligned operation is 125 ns
(f
250 ns (f
When generating complementary PWM signals, the module features
automatic dead-time insertion to the PWM output pairs.
A summary of the PWM registers is shown in
OP
Pulse-Width Modulator for Motor Control (PWMMC)
= 8 MHz). The highest resolution for center-aligned operation is
PWM Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185
OP
Dead-Time Write-Once Register . . . . . . . . . . . . . . . . . . .179
PWM Disable Mapping Write-Once Register . . . . . . . . .179
Fault Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . .180
PWM Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . .177
Fault Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . .181
= 8 MHz).
OP
) and a programmable prescaler.
Figure
Figure
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
9-2.
9-1.