HD6417750RF240DV Renesas Electronics America, HD6417750RF240DV Datasheet - Page 421

• Manufacturer Part Number: HD6417750RF240DV
• Description: MPU 3V 16K I-TEMP,PB-FREE 208-QF
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417750RF240DV

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 28
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

1. Disable the DMAC channels used to access peripheral registers before writing to an RTC
2. Use the following method to write to an RTC register.
register, and write to the RTC register while the exception/interrupt block bit (SR.BL) in the
status register is set to 1. Then use the next instruction to read from the same register.
Read all writeable counter registers (1)
Read all writeable counter registers (2)
Write to the register whose value is to
Compare the values of (1) and (2)
Are the compared values valid?
Write operation complete
be changed
Yes
Rev.7.00 Oct. 10, 2008 Page 335 of 1074
Section 11 Realtime Clock (RTC)
No
REJ09B0366-0700