HD6417708SF60V Renesas Electronics America, HD6417708SF60V Datasheet - Page 203
HD6417708SF60V
Manufacturer Part Number
HD6417708SF60V
Description
IC SUPERH MPU ROMLESS 208LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417708SF60V.pdf
(635 pages)
Specifications of HD6417708SF60V
Core Processor
SH-2
Core Size
32-Bit
Speed
60MHz
Connectivity
EBI/EMI, SCI, SmartCard
Peripherals
POR, WDT
Number Of I /o
8
Program Memory Type
ROMless
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Ram Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417708SF60V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD6417708SF60V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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9.10.5
WTCNT should be set as shown below when using the WDT of the SH7708 (not including the
SH7708S and SH7708R) in watchdog timer mode or interval timer mode.
WTNCT instruction
SLEEP instruction
WTCNT setting
WTCNT setting
set value + 1?
set value + 1?
WTCNT =
WTCNT =
Usage Notes
(a)
(a)
Yes
Yes
Figure 9.7 To Perform Repeated WTCNT Settings
Figure 9.6 To Operate the WDT in Sleep Mode
No
No
WTCNT instruction
count clock cycles
count clock cycles
SLEEP instruction
WTCNT setting
Wait for 2 WDT
WTCNT setting
Wait for 2 WDT
(b)
(b)
Perform either processing (a) or
processing (b). No processing is
required when the WDT is not used
(WTCSR.TME = 0). If this
processing is not performed, the
second WTCNT setting may not be
carried out.
(a)
(b)
Perform either processing (a) or
processing (b). No processing is
required when the WDT is not used
(WTCSR.TME = 0). If this
processing is not performed, the
WDT count will stop in sleep mode.
(a) Read WTCNT and confirm that
(b) Wait for two WDT count clock
After the first WTCNT setting,
read WTCNT and confirm that it
has been incremented, then
perform the next WTCNT
setting.
After the first WTCNT setting,
wait for two WDT count clock
it has been incremented, then
execute a SLEEP instruction.
cycles after WTCNT is set, then
execute a SLEEP instruction.
183
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