HD6417708RF100A Renesas Electronics America, HD6417708RF100A Datasheet - Page 415
![IC SUPERH MPU ROMLESS 144LQFP](/photos/28/61/286126/144-lqfp__plqp0144kb-a_sml.jpg)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417708RF100A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD6417708RF100A
Manufacturer:
HITACHI/日立
Quantity:
20 000
Part Number:
HD6417708RF100AV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Simultaneous Multiple Receive Errors: Table 13.14 shows the state of the SCSSR status flags
when multiple receive errors occur simultaneously. When an overrun error occurs, the SCRSR
contents cannot be transferred to SCRDR, so receive data is lost.
Table 13.14 SCSSR Status Flags and Transfer of Receive Data
Receive Error Status
Overrun error
Framing error
Parity error
Overrun error + framing error
Overrun error + parity error
Framing error + parity error
Overrun error + framing error + parity error 1
O: Receive data is transferred from SCRSR to SCRDR.
X: Receive data is not transferred from SCRSR to SCRDR.
Break Detection and Processing: Break signals can be detected by reading the RxD pin directly
when a framing error (FER) is detected. In the break state, the input from the RxD pin consists of
all 0s, so FER is set and the parity error flag (PER) may also be set. In the break state, the SCI
receiver continues to operate, so if the FER bit is cleared to 0, it will be set to 1 again.
Sending a Break Signal: The input/output direction and level of the TxD pin can be set using the
SPB0IO and SPB0DT bits in the serial port register (SCSPTR). Use these bits to send breaks.
After initialization, the pin will not function as a TxD pin until the TE bit is set to 1 (enabling
transmission). Through this period, the value of the SPB0DT bit substitutes for the mark state. For
this reason, the SPB0IO and SPB0DT bits are initially set to 1 (output, high level). To send a
break during serial transmission, clear the SPB0DT bit to 0 (low level), then clear TE to 0 (halting
transmission). When the TE bit is cleared to 0, the transmitter is initialized without regard to the
current transmission status, and 0 is output from the TxD pin.
Receive Error Flags and Transmitter Operation (Synchronous Mode Only): When a receive
error flag (ORER, PER, or FER) is set to 1, the SCI will not start transmitting even if TDRE is set
to 1. Be sure to clear the receive error flags to 0 before starting to transmit. Note that clearing RE
to 0 does not clear the receive error flags.
Receive Data Sampling Timing and Receive Margin in Asynchronous Mode: In asynchronous
mode, the SCI operates on a base clock of 16 times the transfer rate frequency. In receiving, the
SCI synchronizes internally with the falling edge of the start bit, which it samples on the base
clock. Receive data is latched on the rising edge of the eighth base clock pulse (figure 13.21).
RDRF
1
0
0
1
1
0
SCSSR Status Flags
ORER
1
0
0
1
1
0
1
FER PER
0
1
0
1
0
1
1
0
0
1
0
1
1
1
Receive Data Transfer
SCRSR
X
O
O
X
X
O
X
SCRDR
395
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