HD6417750SF200V Renesas Electronics America, HD6417750SF200V Datasheet - Page 417
HD6417750SF200V
Manufacturer Part Number
HD6417750SF200V
Description
MPU 3V 16K PB-FREE 208-QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750SF200V
Core Processor
SH-4
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
28
Program Memory Type
ROMless
Ram Size
24K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 2.07 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
208-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417750SF200V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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If a carry occurs while the time is being read, the correct time will not be obtained and the read
must be repeated. The procedure for reading the time without using interrupts is shown in (a), and
the procedure using carry interrupts in (b). The method without using interrupts is normally used
to keep the program simple.
Yes
Yes
Disable carry interrupts
Disable carry interrupts
Enable carry interrupts
Read counter register
Read counter register
Interrupt generated?
Figure 11.3 Examples of Time Reading Procedures
Clear carry flag
Clear carry flag
Clear carry flag
Carry flag = 1?
(a) Reading time without using interrupts
(b) Reading time using interrupts
No
No
Clear RCR1.CIE to 0
Clear RCR1.CF to 0
(Write 1 to RCR1.AF so that alarm flag
is not cleared)
Read RCR1 register and check CF bit
Set RCR1.CIE to 1
Clear RCR1.CF to 0
(Write 1 to RCR1.AF so that alarm flag
is not cleared)
Clear RCR1.CIE to 0
Rev.7.00 Oct. 10, 2008 Page 331 of 1074
Section 11 Realtime Clock (RTC)
REJ09B0366-0700
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