DF38122HWV Renesas Electronics America, DF38122HWV Datasheet - Page 407

• Manufacturer Part Number: DF38122HWV
• Description: IC H8/38122 MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of DF38122HWV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

11.1
The H8/38024 Group is provided with two on-chip 10-bit PWMs (pulse width modulators),
designated PWM1 and PWM2, with identical functions. The PWMs can be used as D/A
converters by connecting a low-pass filter. In this section the suffix m (m = 1 or 2) is used with
register names, etc., as in PWDRLm, which denotes the PWDRL registers for each PWM.
11.1.1
Features of the 10-bit PWMs are as follows.
• Choice of four conversion periods
• Pulse division method for less ripple
• Use of module standby mode enables this module to be placed in standby mode independently
On the H8/38124 Group it is possible to select between two types of PWM output: pulse-division
PWM and event counter PWM (PWM incorporating AEC). (The H8/38024 Group, H8/38024F-
ZTAT Group, and H8/38024S Group can only produce pulse-division PWM output.) Refer to
section 9.7, Asynchronous Event Counter, for information on event counter PWM.
Any of the following conversion periods can be chosen:
4,096/φ, with a minimum modulation width of 4/φ
2,048/φ, with a minimum modulation width of 2/φ
1,024/φ, with a minimum modulation width of 1/φ
512/φ, with a minimum modulation width of 1/2 φ
when not used.
Overview
Features
Section 11 10-Bit PWM
Rev. 8.00 Mar. 09, 2010 Page 385 of 658
Section 11 10-Bit PWM
REJ09B0042-0800