HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 642

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 17 Realtime Clock (RTC)
17.4
RTC usage is shown below.
17.4.1
All the registers should be set after the power is turned on.
17.4.2
Figure 17.2 shows how to set the time when the clock is stopped.
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Operation
Initial Settings of Registers after Power-On
Setting Time
week, month, and year
Set seconds, minutes,
hour, day, day of the
reset divider circuit
Stop clock,
Start clock
Figure 17.2 Setting Time
Write 1 to RESET and 0 to
START in the RCR2 register
Order is irrelevant
Write 1 to START in the
RCR2 register
SH7720 Group, SH7721 Group
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010