HD6417750SBP200 Renesas Electronics America, HD6417750SBP200 Datasheet - Page 784
HD6417750SBP200
Manufacturer Part Number
HD6417750SBP200
Description
IC SUPERH MPU ROMLESS 256BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750SBP200
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
24K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 2.07 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HD6417750SBP200
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Section 15 Serial Communication Interface (SCI)
15.3.3
The multiprocessor communication function performs serial communication using a
multiprocessor format, in which a multiprocessor bit is added to the transfer data, in asynchronous
mode. Use of this function enables data transfer to be performed among a number of processors
sharing a serial transmission line.
When multiprocessor communication is carried out, each receiving station is addressed by a
unique ID code.
The serial communication cycle consists of two cycles: an ID transmission cycle which specifies
the receiving station , and a data transmission cycle. The multiprocessor bit is used to differentiate
between the ID transmission cycle and the data transmission cycle.
The transmitting station first sends the ID of the receiving station with which it wants to perform
serial communication as data with a 1 multiprocessor bit added. It then sends transmit data as data
with a 0 multiprocessor bit added.
The receiving station skips the data until data with a 1 multiprocessor bit is sent*.
When data with a 1 multiprocessor bit is received, the receiving station compares that data with its
own ID. The station whose ID matches then receives the data sent next. Stations whose ID does
not match continue to skip the data until data with a 1 multiprocessor bit is again received*. In this
way, data communication is carried out among a number of processors.
Figure 15.12 shows an example of inter-processor communication using a multiprocessor format.
Note: * With this LSI, the RDRF flag in SCSSR1 is also set to 1 when data with a 0
Rev.7.00 Oct. 10, 2008 Page 698 of 1074
REJ09B0366-0700
Multiprocessor Communication Function
multiprocessor bit transmitted to another station is received. When the RDRF flag in
SCSSR1 is set to 1, check the state of the MPIE bit in SCSCR1 with the exception
handling routine, and if the MPIE bit is 1, skip the data. That is to say, data skipping is
implemented in cooperation with the exception handling routine.
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