DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 412

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 12 8-Bit Timers
16-Bit Count Mode
When bits CKS2 to CKS0 in TCR0 are set to B'100, the timer functions as a single 16-bit timer
with channel 0 occupying the upper 8 bits and channel 1 occupying the lower 8 bits.
Compare-Match Count Mode
When bits CKS2 to CKS0 in TCR1 are B'100, TCNT1 counts compare-match A’s for channel 0.
Channels 0 and 1 are controlled independently. Conditions such as setting of the CMF flag,
generation of interrupts, output from the TMO pin, and counter clearing are in accordance with the
settings for each channel.
Usage Note
If the 16-bit count mode and compare-match count mode are set simultaneously, the input clock
pulses for TCNT0 and TCNT1 are not generated and thus the counters will stop operating.
Simultaneous setting of these two modes should therefore be avoided.
Rev. 4.00 Sep 27, 2006 page 366 of 1130
REJ09B0327-0400
Setting of compare-match flags
Counter clear specification
Pin output
The CMF flag in TCSR0 is set to 1 when a 16-bit compare-match occurs.
The CMF flag in TCSR1 is set to 1 when a lower 8-bit compare-match occurs.
If the CCLR1 and CCLR0 bits in TCR0 have been set for counter clear at compare-match,
the 16-bit counter (TCNT0 and TCNT1 together) is cleared when a 16-bit compare-match
occurs. The 16-bit counter (TCNT0 and TCNT1 together) is cleared even if counter clear
by the TMRI0 pin has also been set.
The settings of the CCLR1 and CCLR0 bits in TCR1 are ignored. The lower 8 bits cannot
be cleared independently.
Control of output from the TMO0 pin by bits OS3 to OS0 in TCSR0 is in accordance with
the 16-bit compare-match conditions.
Control of output from the TMO1 pin by bits OS3 to OS0 in TCSR1 is in accordance with
the lower 8-bit compare-match conditions.