HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 298
![16BIT MCU FLASH 56K, SMD, LQFP64](/photos/19/6/190684/ge64qfp05-40_sml.jpg)
HD64F36077GHV
Manufacturer Part Number
HD64F36077GHV
Description
16BIT MCU FLASH 56K, SMD, LQFP64
Manufacturer
Renesas Electronics America
Datasheet
1.HD64F36077GHV.pdf
(524 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F36077GHV
Manufacturer:
RENESAS
Quantity:
340
Part Number:
HD64F36077GHV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Section 14 Watchdog Timer
14.2
The watchdog timer has the following registers.
• Timer control/status register WD (TCSRWD)
• Timer counter WD (TCWD)
• Timer mode register WD (TMWD)
14.2.1
TCSRWD performs the TCSRWD and TCWD write control. TCSRWD also controls the
watchdog timer operation and indicates the operating state. TCSRWD must be rewritten by using
the MOV instruction. The bit manipulation instruction cannot be used to change the setting value.
Rev. 1.00 Sep. 16, 2005 Page 268 of 490
REJ09B0216-0100
Bit
7
6
5
4
3
Bit Name
B6WI
TCWE
B4WI
TCSRWE
B2WI
Register Descriptions
Timer Control/Status Register WD (TCSRWD)
Initial
Value
1
0
1
0
1
R/W
R/W
R/W
R/W
R/W
R/W
Description
Bit 6 Write Inhibit
The TCWE bit can be written only when the write value of
the B6WI bit is 0.
This bit is always read as 1.
Timer Counter WD Write Enable
TCWD can be written when the TCWE bit is set to 1.
When writing data to this bit, the value for bit 7 must be 0.
Bit 4 Write Inhibit
The TCSRWE bit can be written only when the write
value of the B4WI bit is 0. This bit is always read as 1.
Timer Control/Status Register WD Write Enable
The WDON and WRST bits can be written when the
TCSRWE bit is set to 1.
When writing data to this bit, the value for bit 5 must be 0.
Bit 2 Write Inhibit
This bit can be written to the WDON bit only when the
write value of the B2WI bit is 0.
This bit is always read as 1.
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