DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 650

• Manufacturer Part Number: DF2117VT20V
• Description: MCU 16BIT FLASH 3V 160K 144-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VT20V

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: FIFO, I²C, LPC, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 112
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-TQFP, 144-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

19.4.9
In this device, clearing the KBFSEL bit to 0 in KBCRH enables the KBF bit in KBCRH to be
used as a flag for the interrupt generated by the fall of KCLK input.
Figure 19.14 shows the setting method and an example of operation.
Rev. 2.00 Sep. 28, 2009 Page 608 of 994
REJ09B0452-0200
KCLK Fall Interrupt Operation
Note: * The KBF setting timing is the same as the timing of KBF setting and KCLK automatic
Figure 19.14 Example of KCLK Input Fall Interrupt Operation
(interrupt generated)
interrupts enabled)
(KCLK falling edge
Interrupt handling
(KBBR reception
fall detected?
KBFSEL = 0
I/O inhibit bit generation in figure 19.11. When the KBF bit is used as the KCLK input fall
interrupt flag, the automatic I/O inhibit function does not operate.
Set KBIOE
Clear KBF
KCLK pin
disabled)
KBIE = 1
KBE = 0
KBF = 1
Start
Yes
No
KCLK
(pin state)
KBF bit
Interrupt
generated
Cleared
by software
Interrupt
generated