DS72011RB120FPV Renesas Electronics America, DS72011RB120FPV Datasheet - Page 693

• Manufacturer Part Number: DS72011RB120FPV
• Description: IC SH7201 MPU ROMLESS 176LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7200r

Specifications of DS72011RB120FPV

• Core Size: 32-Bit
• Core Processor: SH-2A
• Speed: 120MHz
• Connectivity: CAN, EBI/EMI, FIFO, I²C, SCI, Serial Sound
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 70°C
• Package / Case: 176-LQFP
• No. Of I/o's: 109
• Ram Memory Size: 32KB
• Cpu Speed: 120MHz
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -20°C To +70°C
• Embedded Interface Type: I2C, SSI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: R0K572011S000BE - KIT STARTER FOR SH7201HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

SH7201 Group
15.5
15.5.1
Do not write to the count registers (RSECCNT, RMINCNT, RHRCNT, RDAYCNT, RWKCNT,
RMONCNT, and RYRCNT) during the RTC counting (while the START bit in RCR2 is 1). If any
of the count registers is written to during the RTC counting, the count register may not be read
correctly immediately after the execution of a write instruction. The RTC counting must be
stopped before writing to any of the count registers.
15.5.2
The method of using the periodic interrupt function is shown in figure 15.5.
A periodic interrupt can be generated periodically at the interval set by the flags PES0 to PES2 in
RCR2. When the time set by the PES0 to PES2 has elapsed, the PEF is set to 1.
The PEF is cleared to 0 upon periodic interrupt generation or when the flags PES0 to PES2 are set.
Periodic interrupt generation can be confirmed by reading this bit, but normally the interrupt
function is used.
15.5.3
When a transition to standby mode is made after registers in the RTC are set, sometimes counting
is not performed correctly. In case the registers are set, be sure to make a transition to standby
mode after waiting for two count clocks or more.
R01UH0026EJ0300 Rev. 3.00
Sep 24, 2010
Usage Notes
Register Writing during RTC Count
Use of Realtime Clock (RTC) Periodic Interrupts
Transition to Standby Mode after Setting Register
Figure 15.5 Using Periodic Interrupt Function
Elapse of time set by PES
Set PES, clear PEF
Clear PEF
Set PES0 to PES2,
and clear PEF to 0,
in RCR2
Clear PEF to 0
Section 15 Realtime Clock (RTC)
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