YLCDRSK2378 Renesas Electronics America, YLCDRSK2378 Datasheet - Page 741

• Manufacturer Part Number: YLCDRSK2378
• Description: KIT DEV EVAL H8S/2378 LCD
• Manufacturer: Renesas Electronics America
• Series: H8®r

Specifications of YLCDRSK2378

• Main Purpose: Displays, LCD Controller
• Embedded: Yes, MCU, 16-Bit
• Utilized Ic / Part: YLCDRSK2378
• 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

13.8.4
If compare match events A and B occur at the same time, the 8-bit timer operates in accordance
with the priorities for the output statuses set for compare match A and compare match B, as shown
in table 13.4.
Table 13.4 Timer Output Priorities
Output Setting
Toggle output
1 output
0 output
No change
13.8.5
TCNT may increment erroneously when the internal clock is switched over. Table 13.5 shows the
relationship between the timing at which the internal clock is switched (by writing to the CKS1
and CKS0 bits) and the TCNT operation.
When the TCNT clock is generated from an internal clock, the falling edge of the internal clock
pulse is detected. If clock switching causes a change from high to low level, as shown in case 3 in
table 13.5, a TCNT clock pulse is generated on the assumption that the switchover is a falling
edge. This increments TCNT.
The erroneous incrementation can also happen when switching between internal and external
clocks.
Contention between Compare Matches A and B
Switching of Internal Clocks and TCNT Operation
Rev.7.00 Mar. 18, 2009 page 673 of 1136
Section 13 8-Bit Timers (TMR)
REJ09B0109-0700
Priority
High
Low