HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 299

• Manufacturer Part Number: HD64F36077GHV
• Description: 16BIT MCU FLASH 56K, SMD, LQFP64
• Manufacturer: Renesas Electronics America

Specifications of HD64F36077GHV

• No. Of I/o's: 47
• Ram Memory Size: 4KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 4.5V
• Core Size: 16bit
• Program Memory Size: 56KB
• Oscillator Type: External Only
• Controller Family/series: H8/300H
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Bit
2
1
0
Bit Name
WDON
B0WI
WRST
Initial
Value
1
1
0
R/W
R/W
R/W
R/W
Description
Watchdog Timer On
TCWD starts counting up when the WDON bit is set to 1
and halts when the WDON bit is cleared to 0. The
watchdog timer is enabled in the initial state. When the
watchdog timer is not used, clear the WDON bit to 0.
[Setting conditions]
•
•
[Clearing condition]
•
Bit 0 Write Inhibit
This bit can be written to the WRST bit only when the
write value of the B0WI bit is 0. This bit is always read as
1.
Watchdog Timer Reset
[Setting condition]
•
[Clearing conditions]
•
•
Reset
When 1 is written to the WDON bit and 0 is written to
the B2WI bit while the TCSRWE bit = 1
When 0 is written to the WDON bit and 0 is written to
the B2WI bit while the TCSRWE bit = 1
When TCWD overflows and an internal reset signal is
generated
Reset by the RES pin
When 0 is written to the WRST bit and 0 is written to
the B0WI bit while the TCSRWE bit = 1
Rev. 1.00 Sep. 16, 2005 Page 269 of 490
Section 14 Watchdog Timer
REJ09B0216-0100