HD6417708RF100A Renesas Electronics America, HD6417708RF100A Datasheet - Page 405
HD6417708RF100A
Manufacturer Part Number
HD6417708RF100A
Description
IC SUPERH MPU ROMLESS 144LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417708SF60V.pdf
(635 pages)
Specifications of HD6417708RF100A
Core Processor
SH-2
Core Size
32-Bit
Speed
100MHz
Connectivity
EBI/EMI, SCI, SmartCard
Peripherals
POR, WDT
Number Of I /o
8
Program Memory Type
ROMless
Voltage - Supply (vcc/vdd)
3.15 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Ram Size
-
Program Memory Size
-
Data Converters
-
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character units, so a 16 pulse synchronization clock is output. To receive in 1-character units,
select an external clock source.
Transmitting and Receiving Data: SCI Initialization (synchronous mode). Before transmitting,
receiving, or changing the mode or communication format, the software must clear the TE and RE
bits to 0 in the serial control register (SCSCR), then initialize the SCI. Clearing TE to 0 sets TDRE
to 1 and initializes the transmit shift register (SCTSR). Clearing RE to 0, however, does not
initialize the RDRF, PER, FER, and ORER flags and receive data register (SCRDR), which retain
their previous contents.
Figure 13.15 is a sample flowchart for initializing the SCI. The procedure for initializing the SCI
is:
1. Select the clock source in the serial control register (SCSCR). Leave RIE, TIE, TEIE, MPIE,
2. Select the communication format in the serial mode register (SCSMR).
3. Write the value corresponding to the bit rate in the bit rate register (SCBRR) unless an external
4. Wait for at least the interval required to transmit or receive one bit, then set TE or RE in the
TE and RE cleared to 0.
clock is used.
serial control register (SCSCR) to 1. Also set RIE, TIE, TEIE and MPIE. Setting TE and RE
allows use of the TxD and RxD pins.
385
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