DF38602RFT10 Renesas Electronics America, DF38602RFT10 Datasheet - Page 257
DF38602RFT10
Manufacturer Part Number
DF38602RFT10
Description
MCU 3V 16K 32-QFN
Manufacturer
Renesas Electronics America
Series
H8® H8/300H SLPr
Datasheet
1.DF38602RFT10.pdf
(554 pages)
Specifications of DF38602RFT10
Core Processor
H8/300H
Core Size
16-Bit
Speed
10MHz
Connectivity
I²C, IrDA, SCI, SSU
Peripherals
POR, PWM, WDT
Number Of I /o
13
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
32-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F38602RFT10
HD64F38602RFT10
HD64F38602RFT10
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF38602RFT10V
Manufacturer:
Renesas Electronics America
Quantity:
135
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13.4
13.4.1
When bit CH2 is cleared to 0 in ECCSR, ECH and ECL operate as a 16-bit event counter.
Any of four input clock sources—φ/2, φ/4, φ/8, or AEVL pin input—can be selected by means of
bits ACKL1 and ACKL0 in ECCR. When AEVL pin input is selected, input sensing is selected
with bits ALEGS1 and ALEGS0.
Note that the input clock is enabled when IRQAEC is high or IECPWM is high. When IRQAEC is
low or IECPWM is low, the input clock is not input to the counter, which therefore does not
operate. Figure 13.2 shows the software procedure when ECH and ECL are used as a 16-bit event
counter.
As CH2 is cleared to 0 by a reset, ECH and ECL operate as a 16-bit event counter after a reset,
and as ACKL1 and ACKL0 are cleared to B′00, the operating clock is asynchronous event input
from the AEVL pin (using falling edge sensing).
When the next clock is input after the count value reaches H'FF in both ECH and ECL, ECH and
ECL overflow from H'FFFF to H'0000, the OVH flag is set to 1 in ECCSR, the ECH and ECL
count values each return to H'00, and counting up is restarted. When an overflow occurs, the
IRREC bit is set to 1 in IRR2. If the IENEC bit in IENR2 is 1 at this time, an interrupt request is
sent to the CPU.
Figure 13.2 Software Procedure when Using ECH and ECL as 16-Bit Event Counter
16-Bit Counter Operation
Operation
Clear CH2 to 0
Set ACKL1, ACKL0, ALEGS1, and ALEGS0
Clear CUEH, CUEL, CRCH, and CRCL to 0
Clear OVH and OVL to 0
Set CUEH, CUEL, CRCH, and CRCL to 1
Start
End
Section 13 Asynchronous Event Counter (AEC)
Rev. 3.00 May 15, 2007 Page 223 of 516
REJ09B0152-0300
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