DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 416
DF2148RTE20IV
Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148RTE20IV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 12 8-Bit Timers
Table 12.6 TMRY 8-Bit Timer Interrupt Sources
Interrupt source
CMIA
CMIB
OVI
12.5
In the example below, the 8-bit timer is used to generate a pulse output with a selected duty cycle,
as shown in figure 12.12. The control bits are set as follows:
With these settings, the 8-bit timer provides output of pulses at a rate determined by TCORA with
a pulse width determined by TCORB. No software intervention is required.
Rev. 4.00 Sep 27, 2006 page 370 of 1130
REJ09B0327-0400
In TCR, CCLR1 is cleared to 0 and CCLR0 is set to 1 so that the timer counter is cleared by a
TCORA compare-match.
In TCSR, bits OS3 to OS0 are set to B'0110, causing 1 output at a TCORA compare-match and
0 output at a TCORB compare-match.
TCORA
TCORB
TMO
8-Bit Timer Application Example
H'FF
H'00
Description
Requested by CMFA
Requested by CMFB
Requested by OVF
Figure 12.12 Pulse Output (Example)
TCNT
DTC Activation
Possible
Possible
Not possible
Counter clear
Interrupt Priority
High
Low
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