HD6417750RF200DV Renesas Electronics America, HD6417750RF200DV Datasheet - Page 401
HD6417750RF200DV
Manufacturer Part Number
HD6417750RF200DV
Description
MPU 1.5/3.3V 0K I-TEMP PB-FREE 2
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750RF200DV
Core Processor
SH-4
Core Size
32-Bit
Speed
200MHz
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)
1.35 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
208-QFP Exposed Pad, 208-eQFP, 208-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417750RF200DV
Manufacturer:
FREESCALE
Quantity:
450
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11.2
11.2.1
R64CNT is an 8-bit read-only register that indicates a state of 64 Hz to 1 Hz within the RTC
frequency divider.
If this register is read when a carry is generated from the 128 kHz frequency division stage, bit 7
(CF) in RTC control register 1 (RCR1) is set to 1, indicating the simultaneous occurrence of the
carry and the 64 Hz counter read. In this case, the read value is not valid, and so R64CNT must be
read again after first writing 0 to the CF bit in RCR1 to clear it.
When the RESET bit or ADJ bit in RTC control register 2 (RCR2) is set to 1, the RTC frequency
divider is initialized and R64CNT is initialized to H'00.
R64CNT is not initialized by a power-on or manual reset, or in standby mode.
Bit 7 is always read as 0 and cannot be modified.
Initial value:
Register Descriptions
64 Hz Counter (R64CNT)
R/W:
Bit:
—
R
7
0
Undefined Undefined Undefined Undefined Undefined Undefined Undefined
1 Hz
R
6
2 Hz
R
5
4 Hz
R
4
Rev.7.00 Oct. 10, 2008 Page 315 of 1074
8 Hz
R
3
Section 11 Realtime Clock (RTC)
16 Hz
R
2
REJ09B0366-0700
32 Hz
R
1
64 Hz
R
0
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