HD64F2612FA20 Renesas Electronics America, HD64F2612FA20 Datasheet - Page 346

• 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: -

Section 13 Watchdog Timer
Reading TCNT, TCSR, and RSTCSR (WDT0)
These registers are read in the same way as other registers. The read addresses are H'FF74 for
TCSR, H'FF75 for TCNT, and H'FF77 for RSTCSR.
13.5.2
If a timer counter clock pulse is generated during the T
takes priority and the timer counter is not incremented. Figure 13.3 shows this operation.
Rev. 7.00 Sep. 11, 2009 Page 310 of 566
REJ09B0211-0700
Figure 13.2 Writing to TCNT, TCSR, and RSTCSR (Example for WDT0)
Contention between Timer Counter (TCNT) Write and Increment
Address
Internal write signal
TCNT input clock
TCNT
φ
Figure 13.3 Contention between TCNT Write and Increment
TCNT write
Writing to RSTE and RSTS bits
TCSR write
Writing 0 to WOVF bit
Address:
Address:
H'FF74
H'FF76
H'FF74
H'FF76
15
15
TCNT write cycle
T 1
H'5A
H'A5
N
T 2
2
8 7
8 7
state of a TCNT write cycle, the write
Write data or H'00
Write data
Counter write data
M
0
0