DF36054FPJV Renesas Electronics America, DF36054FPJV Datasheet - Page 222

• Manufacturer Part Number: DF36054FPJV
• Description: MCU 3/5V 32K J-TEMP PB-FREE 64-L
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of DF36054FPJV

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SSU
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 12 Timer Z
Free-Running Count Operation and Periodic Count Operation: Immediately after a reset, the
TCNT counters for channels 0 and 1 are all designated as free-running counters. When the
relevant bit in TSTR is set to 1, the corresponding TCNT counter starts an increment operation as
a free-running counter. When TCNT overflows, the OVF flag in TSR is set to 1. If the value of the
OVIE bit in the corresponding TIER is 1 at this point, timer Z requests an interrupt. After
overflow, TCNT starts an increment operation again from H'0000.
Figure 12.8 illustrates free-running counter operation.
When compare match is selected as the TCNT clearing source, the TCNT counter for the relevant
channel performs periodic count operation. The GR registers for setting the period are designated
as output compare registers, and counter clearing by compare match is selected by means of bits
CCLR1 and CCLR0 in TCR. After the settings have been made, TCNT starts an increment
operation as a periodic counter when the corresponding bit in TSTR is set to 1. When the count
value matches the value in GR, the IMFA, IMFB, IMFC, or IMFD flag in TSR is set to 1 and
TCNT is cleared to H'0000.
If the value of the corresponding IMIEA, IMIEB, IMIEC, or IMIED bit in TIER is 1 at this point,
the timer Z requests an interrupt. After a compare match, TCNT starts an increment operation
again from H'0000.
Rev. 4.00 Mar. 15, 2006 Page 188 of 556
REJ09B0026-0400
H'FFFF
H'0000
STR0,
STR1
OVF
TCNT value
Figure 12.8 Free-Running Counter Operation
Time