DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 418
DF2398TE20
Manufacturer Part Number
DF2398TE20
Description
IC H8S MCU FLASH 256K 120TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2398TE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
120-TQFP, 120-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2398TE20
HD64F2398TE20
HD64F2398TE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2398TE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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10.4.7
In phase counting mode, the phase difference between two external clock inputs is detected and TCNT is
incremented/decremented accordingly. This mode can be set for channels 1, 2, 4, and 5.
When phase counting mode is set, an external clock is selected as the counter input clock and TCNT operates as an
up/down-counter regardless of the setting of bits TPSC2 to TPSC0 and bits CKEG1 and CKEG0 in TCR. However, the
functions of bits CCLR1 and CCLR0 in TCR, and of TIOR, TIER, and TGR are valid, and input capture/compare match
and interrupt functions can be used.
When overflow occurs while TCNT is counting up, the TCFV flag in TSR is set; when underflow occurs while TCNT is
counting down, the TCFU flag is set.
The TCFD bit in TSR is the count direction flag. Reading the TCFD flag provides an indication of whether TCNT is
counting up or down.
Table 10-8 shows the correspondence between external clock pins and channels.
Table 10-8 Phase Counting Mode Clock Input Pins
Example of Phase Counting Mode Setting Procedure: Figure 10-28 shows an example of the phase counting mode
setting procedure.
Examples of Phase Counting Mode Operation: In phase counting mode, TCNT counts up or down according to the
phase difference between two external clocks. There are four modes, according to the count conditions.
Rev.6.00 Oct.28.2004 page 388 of 1016
REJ09B0138-0600H
Phase counting mode 1
Figure 10-29 shows an example of phase counting mode 1 operation, and table 10-9 summarizes the TCNT up/down-
count conditions.
Phase Counting Mode
Channels
When channel 1 or 5 is set to phase counting mode
When channel 2 or 4 is set to phase counting mode
Select phase counting mode
<Phase counting mode>
Phase counting mode
Figure 10-28 Example of Phase Counting Mode Setting Procedure
Start count
[1]
[2]
[1] Select phase counting mode with bits MD3 to
[2] Set the CST bit in TSTR to 1 to start the count
MD0 in TMDR.
operation.
A-Phase
TCLKA
TCLKC
External Clock Pins
B-Phase
TCLKB
TCLKD
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