DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 583

• Manufacturer Part Number: DF61654N50FTV
• Description: IC H8SX/1654 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61654N50FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 75
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

13.3
The WDT has the following three registers. To prevent accidental overwriting, TCSR, TCNT, and
RSTCSR have to be written to in a method different from normal registers. For details, see section
13.6.1, Notes on Register Access.
• Timer counter (TCNT)
• Timer control/status register (TCSR)
• Reset control/status register (RSTCSR)
13.3.1
TCNT is an 8-bit readable/writable up-counter. TCNT is initialized to H'00 when the TME bit in
TCSR is cleared to 0.
13.3.2
TCSR selects the clock source to be input to TCNT, and the timer mode.
Bit
Bit Name
Initial Value
R/W
Note:
Bit
Bit Name
Initial Value
R/W
* Only 0 can be written to this bit, to clear the flag.
Register Descriptions
Timer Counter (TCNT)
Timer Control/Status Register (TCSR)
R/(W)*
OVF
R/W
7
0
7
0
WT/IT
R/W
R/W
6
0
6
0
TME
R/W
R/W
5
0
5
0
R/W
R
4
0
4
1
R/W
R
3
0
3
1
Rev.1.00 Sep. 08, 2005 Page 533 of 966
Section 13 Watchdog Timer (WDT)
CKS2
R/W
R/W
2
0
2
0
CKS1
R/W
R/W
1
0
1
0
REJ09B0219-0100
CKS0
R/W
R/W
0
0
0
0