HD6417708SF60V Renesas Electronics America, HD6417708SF60V Datasheet - Page 358
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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12.4
12.4.1
With the SH7708 (not including the SH7708S and SH7708R), the procedure shown in the
flowchart below should be used to clear the carry flag (CF) and alarm flag (AF) in realtime clock
(RTC) register RCR1 (RTC control register 1) and the peripheral interrupt flag (PEF) in register
RCR2 (RTC control register 2).
If an interval of at least 63 µs is not allowed, the AF flag may not be set even if the setting
conditions are satisfied. Use the same procedure for clearing the CF and PEF flags.
12.4.2
In the SH7708 Series (SH7708, SH7708S, and SH7708R), the following RTC registers cannot be
written to while the RTC is counting (while bit 0 of RCR2 = 1).
The RTC count must be stopped before writing to any of these registers.
12.4.3
Figure 12.7 shows how to use the periodic interrupt function.
The periodic interrupt function can occur the interrupt periodically which designated by
RCR2.PES bits. RCR2.PEF bit is set to 1 after the period designated by the RCR2.PES bits or
338
Usage Notes
Flag Clearing
Register Writes during RTC Count
Usage Note about Periodic Interrupt on RTC
RSECCNT, RMINCNT, RHRCNT, RDAYCNT, RWKCNT, RMONCNT, RYRCNT
1. Transition to standby mode
2. Change STC0, STC1 in FEQCR (frequency control register)
3. Change MSTP1 in STBCR (standby control register)
Clear AF flag
Entire lot
Wait for 63 s or more
Figure 12.6 AF Flag Clearing
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