YLCDRSK2378 Renesas Electronics America, YLCDRSK2378 Datasheet - Page 752

Manufacturer Part Number

KIT DEV EVAL H8S/2378 LCD

Manufacturer

Renesas Electronics America

Main Purpose

Displays, LCD Controller

Yes, MCU, 16-Bit

Utilized Ic / Part

Primary Attributes

5.7" QVGA, Touch Screen

Secondary Attributes

Source Code on CD, Debugging Requires Emulator Cable E10A USB/JTAG

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Section 14 Watchdog Timer (WDT)

During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI).

The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. OVF must be

cleared to 0 in the interrupt handling routine.

Table 14.2 WDT Interrupt Source

The watchdog timer’s TCNT, TCSR, and RSTCSR registers differ from other registers in being

more difficult to write to. The procedures for writing to and reading these registers are given

Writing to TCNT, TCSR, and RSTCSR

TCNT and TCSR must be written to by a word transfer instruction. They cannot be written to by a

byte transfer instruction.

Rev.7.00 Mar. 18, 2009 page 684 of 1136

REJ09B0109-0700

WOVI: Interval timer interrupt request generation

Interrupt Source

Notes on Register Access

Interrupt Source

TCNT overflow

Figure 14.3 Operation in Interval Timer Mode

Interrupt Flag

DTC Activation