DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 387
![IC H8S/2437 MCU FLASH 128QFP](/photos/12/29/122945/df2437fv_sml.jpg)
DF2437FV
Manufacturer Part Number
DF2437FV
Description
IC H8S/2437 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of DF2437FV
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Examples of Buffer Operation:
• When TGR is Output Compare Register
Figure 12.19 shows an operation example in which PWM mode 1 has been designated for
channel 0, and buffer operation has been designated for TGRA and TGRC. The settings used
in this example are TCNT clearing by compare match B, 1 output at compare match A, and 0
output at compare match B.
As buffer operation has been set, when compare match A occurs the output changes and the
value in buffer register TGRC is simultaneously transferred to timer general register TGRA.
This operation is repeated each time compare match A occurs.
For details on PWM modes, see section 12.5.5, PWM Modes.
TGRB_0
TGRA_0
H'0000
TGRC_0
TGRA_0
TIOCA
TCNT value
Transfer
H'0200
Figure 12.18 Example of Buffer Operation Setting Procedure
Select TGR function
Set buffer operation
<Buffer operation>
Buffer operation
H'0200
Start counting
Figure 12.19 Example of Buffer Operation (1)
H'0200
H'0450
[1]
[2]
[3]
[1]
[2]
[3]
H'0450
Designate TGR as an input capture register or
output compare register by means of TIOR.
Designate TGR for buffer operation with bits
BFA and BFB in TMDR.
Set the CST bit in TSTR to 1 to start the count
operation.
H'0450
Rev.2.00 May. 28, 2009 Page 347 of 732
H'0520
REJ09B0059-0200
H'0520
Time
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