HD6417706F133 Renesas Electronics America, HD6417706F133 Datasheet - Page 392

• Manufacturer Part Number: HD6417706F133
• Description: IC SUPERH MPU ROMLESS 176LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417706F133

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.75 V ~ 2.05 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 176-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 13 Realtime Clock (RTC)
13.3.1
The 64-Hz counter (R64CNT) is an 8-bit read-only register that indicates the state of the RTC
divider circuit between 64 Hz and 1 Hz.
R64CNT is reset to H'00 by setting the RESET bit in RCR2 or the ADJ bit in RCR2 to 1.
R64CNT is not initialized by a power-on reset or manual reset, or in standby mode.
Rev. 5.00 May 29, 2006 page 342 of 698
REJ09B0146-0500
Bit
7
6 to 0
Month alarm register (RMONAR)
RTC control register 1 (RCR1)
RTC control register 2 (RCR2)
64-Hz Counter (R64CNT)
Bit Name
Initial Value
0
R/W
R
R
Description
Always read as 0.
64Hz counter
Each bit (bits 6 to 0) indicates the state of the
6:
5:
4:
3:
2:
1:
0:
RTC divider circuit between 64 and 1Hz.
Bit
Frequency
1Hz
2Hz
4Hz
8Hz
16Hz
32Hz
64Hz