HD64F2612FA20 Renesas Electronics America, HD64F2612FA20 Datasheet - Page 341

• Manufacturer Part Number: HD64F2612FA20
• Description: IC H8S MCU FLASH 128K 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2612FA20

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 43
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

13.2.2
TCSR is an 8-bit readable/writable register. Its functions include selecting the clock source to be
input to TCNT, and selecting the timer mode.
Bit
7
6
5
4, 3
OVF
WT/IT
TME
—
Bit Name
Timer Control/Status Register (TCSR)
Initial Value
0
0
0
All 1
R/W
R/(W) *
R/W
R/W
—
Description
Overflow Flag
Indicates that TCNT has overflowed. Only a write of
0 is permitted, to clear the flag.
[Setting condition]
•
When internal reset request generation is selected in
watchdog timer mode, OVF is cleared automatically
by the internal reset.
[Clearing condition]
•
Timer Mode Select
Selects whether the WDT is used as a watchdog
timer or interval timer.
0: Interval timer mode
1: Watchdog timer mode
Timer Enable
When this bit is set to 1, TCNT starts counting. When
this bit is cleared, TCNT stops counting and is
initialized to H'00.
Reserved
These bits are always read as 1 and cannot be
modified.
When TCNT overflows (changes from H'FF to
H'00)
Cleared by reading TCSR when OVF = 1, then
writing 0 to OVF
Rev. 7.00 Sep. 11, 2009 Page 305 of 566
Section 13 Watchdog Timer
REJ09B0211-0700