DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 303
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
- Current page: 303 of 776
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10.5.5
ICRC and ICRD can operate as buffers for ICRA and ICRB, respectively. Figure 10.9 shows how
input capture operates when ICRC is used as ICRA's buffer register (BUFEA = 1) and IEDGA and
IEDGC are set to different values (IEDGA = 1 and IEDGC = 0, or IEDGA = 0 and IEDGC = 1),
so that input capture is performed on both the rising and falling edges of FTIA.
Even when ICRC or ICRD is used as a buffer register, its input capture flag is set according to the
selected edge of its input capture signal. For example, if ICRC is used as the ICRA buffer register,
when the edge transition selected by the IEDGC bit occurs on the FTIC input capture line, the
ICFC flag will be set, and if the ICICE bit is set at this time, an interrupt will be requested. The
FRC value will not be transferred to ICRC, however. In buffered input capture, if either set of two
registers to which data will be transferred (ICRA and ICRC, or ICRB and ICRD) is being read
when the input capture input signal occurs, input capture is delayed by one system clock (φ).
Figure 10.10 shows the timing when BUFEA = 1.
φ
FTIA
Input capture
signal
FRC
ICRA
ICRC
Buffered Input Capture Input Timing
M
m
Figure 10.9 Buffered Input Capture Timing
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Rev.2.00 May. 28, 2009 Page 263 of 732
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