HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 813
HD6417751RF240V
Manufacturer Part Number
HD6417751RF240V
Description
MPU 1.5/3.3V 0K PB-FREE 256-QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417751RBP200DV.pdf
(1226 pages)
Specifications of HD6417751RF240V
Core Processor
SH-4
Core Size
32-Bit
Speed
240MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
39
Program Memory Type
ROMless
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-QFP Exposed Pad, 256-eQFP, 256-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417751RF240V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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16. Serial Communication Interface with FIFO (SCIF)
16.4
SCIF Interrupt Sources and the DMAC
The SCIF has four interrupt sources: transmit-FIFO-data-empty interrupt (TXI) request, receive-
error interrupt (ERI) request, receive-FIFO-data-full interrupt (RXI) request, and break interrupt
(BRI) request.
Table 16.6 shows the interrupt sources and their order of priority. The interrupt sources are
enabled or disabled by means of the TIE, RIE, and REIE bits in SCSCR2. A separate interrupt
request is sent to the interrupt controller for each of these interrupt sources.
When transmission/reception is carried out using the DMAC, output of interrupt requests to the
interrupt controller can be inhibited by clearing the RIE bit in SCSCR2 to 0. By setting the REIE
bit to 1 while the RIE bit is cleared to 0, it is possible to output ERI and BRI interrupt requests, but
not RXI interrupt requests.
When the TDFE flag in the serial status register (SCFSR2) is set to 1, a transmit-FIFO-data-empty
request is generated separately from the interrupt request. A transmit-FIFO-data-empty request can
activate the DMAC to perform data transfer.
When the RDF flag or DR flag in SCFSR2 is set to 1, a receive-FIFO-data-full request is
generated separately from the interrupt request. A receive-FIFO-data-full request can activate the
DMAC to perform data transfer.
When using the DMAC for transmission/reception, set and enable the DMAC before making the
SCIF settings. See section 14, Direct Memory Access Controller (DMAC), for details of the
DMAC setting procedure.
When the BRK flag in SCFSR2 or the ORER flag in the line status register (SCLSR2) is set to 1, a
BRI interrupt request is generated.
The TXI interrupt indicates that transmit data can be written, and the RXI interrupt indicates that
there is receive data in SCFRDR2.
Rev.4.00 Oct. 10, 2008 Page 713 of 1122
REJ09B0370-0400
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