HD64F7047FW40V Renesas Electronics America, HD64F7047FW40V Datasheet - Page 404
HD64F7047FW40V
Manufacturer Part Number
HD64F7047FW40V
Description
MCU 5V 256K I-TEMP,PB-FREE 100-Q
Manufacturer
Renesas Electronics America
Series
SuperH® SH7047r
Datasheet
1.HD64F7047F50V.pdf
(766 pages)
Specifications of HD64F7047FW40V
Core Processor
SH-2
Core Size
32-Bit
Speed
40MHz
Connectivity
CAN, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
53
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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12.5
Multiprocessor Communication Function
Use of the multiprocessor communication function enables data transfer to be performed among a
number of processors sharing communication lines by means of asynchronous serial
communication using the multiprocessor format, in which a multiprocessor bit is added to the
transfer data. When multiprocessor communication is carried out, each receiving station is
addressed by a unique ID code. The serial communication cycle consists of two component
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. If the multiprocessor bit is 1, the cycle is an ID transmission cycle, and if
the multiprocessor bit is 0, the cycle is a data transmission cycle. Figure 12.10 shows an example
of inter-processor communication using the multiprocessor format. The transmitting station first
sends the ID code 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 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 data until data with a 1 multiprocessor bit is again received.
The SCI uses the MPIE bit in SCR to implement this function. When the MPIE bit is set to 1,
transfer of receive data from RSR to RDR, error flag detection, and setting the SSR status flags,
RDRF, FER, and OER to 1 are inhibited until data with a 1 multiprocessor bit is received. On
reception of receive character with a 1 multiprocessor bit, the MPBR bit in SSR is set to 1 and the
MPIE bit is automatically cleared, thus normal reception is resumed. If the RIE bit in SCR is set to
1 at this time, an RXI interrupt is generated.
When the multiprocessor format is selected, the parity bit setting is invalid. All other bit settings
are the same as those in normal asynchronous mode. The clock used for multiprocessor
communication is the same as that in normal asynchronous mode.
Rev. 2.00, 09/04, page 362 of 720
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