DF2117VLP20V Renesas Electronics America, DF2117VLP20V Datasheet - Page 628

• Manufacturer Part Number: DF2117VLP20V
• Description: IC H8S/2117 MCU FLASH 145TFLGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VLP20V

• 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: 145-TFLGA
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK2166 - DEV EVAL KIT H8S/2166
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 18 Keyboard Buffer Control Unit (PS2)
18.4.9
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 18.14 shows the setting method and an example of operation.
Rev. 3.00 Sep. 28, 2009 Page 582 of 910
REJ09B0350-0300
KCLK Fall Interrupt Operation
Note: * The KBF setting timing is the same as the timing of KBF setting and KCLK automatic
Figure 18.14 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 18.11. 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