HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 392

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

11. Realtime Clock (RTC)
11.1.2
Figure 11.1 shows a block diagram of the RTC.
Rev.4.00 Oct. 10, 2008 Page 292 of 1122
REJ09B0370-0400
Note: * SH7751R only
RSECCNT
RSECAR
R64CNT
Prescaler
RTCCLK
Block Diagram
16.384 kHz
128 Hz
RMINCNT
RMINAR
32.768 kHz
Counter unit
Figure 11.1 Block Diagram of RTC
RHRCNT
RHRAR
oscillation circuit
RTC crystal
Bus interface
RDAYCNT
RDAYAR
To registers
Internal peripheral module bus
control unit
ATI
Interrupt
PRI
RWKCNT
RWKAR
CUI
RESET, STBY, etc
RTC operation
RMONCNT
control unit
RMONAR
RCR1
RCR2
RCR3
RYRCNT
RYRAR
*
*