HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 244

• Manufacturer Part Number: HD64F3644H
• Description: IC H8 MCU FLASH 32K 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Package: 64PQFP
• Family Name: H8
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 45
• Interface Type: SCI
• On-chip Adc: 8-chx8-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 9 Timers
Bit 5 Timer Overflow Flag (OVF): Bit 5 is a status flag indicating that TCNTV has overflowed
from H'FF to H'00. This flag is set by hardware and cleared by software. It cannot be set by
software.
Bit 5: OVF
0
1
Bit 4 Reserved Bit: Bit 4 is reserved; it is always read as 1, and cannot be modified.
Bits 3 to 0 Output Select 3 to 0 (OS3 to OS0): Bits 3 to 0 select the way in which the output
level at the TMOV pin changes in response to compare match between TCNTV and TCORA or
TCORB.
OS3 and OS2 select the output level for compare match B. OS1 and OS0 select the output level
for compare match A. The two levels can be controlled independently.
If two compare matches occur simultaneously, any conflict between the settings is resolved
according to the following priority order: toggle output > 1 output > 0 output.
When OS3 to OS0 are all cleared to 0, timer output is disabled.
After a reset, the timer output is 0 until the first compare match.
Bit 3: OS3
0
1
Bit 1: OS1
0
1
Rev. 6.00 Sep 12, 2006 page 222 of 526
REJ09B0326-0600
Bit 2: OS2
0
1
0
1
Bit 0: OS0
0
1
0
1
Description
Clearing condition:
After reading OVF = 1, cleared by writing 0 to OVF
Setting condition:
Set when TCNTV overflows from H'FF to H'00
Description
No change at compare match B
0 output at compare match B
1 output at compare match B
Output toggles at compare match B
Description
No change at compare match A
0 output at compare match A
1 output at compare match A
Output toggles at compare match A
(initial value)
(initial value)
(initial value)