HD6417708SF60 Renesas Electronics America, HD6417708SF60 Datasheet - Page 397

• Manufacturer Part Number: HD6417708SF60
• Description: IC SUPERH MPU ROMLESS 144LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708SF60

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3 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: -

Figure 13.9 shows an example of communication among processors using the multiprocessor
format.
Communication Formats: Four formats are available. Parity-bit settings are ignored when the
multiprocessor format is selected. For details see table 13.11.
Clock: See the description in the asynchronous mode section.
Transmitting Multiprocessor Serial Data: Figure 13.10 shows a sample flowchart for
transmitting multiprocessor serial data. The procedure for transmitting multiprocessor serial data
is:
1. SCI status check and transmit data write: Read the serial status register (SCSSR), check that
2. To continue transmitting serial data: Read the TDRE bit to check whether it is safe to write (if
3. To output a break at the end of serial transmission: Set the SPB0DT bit in the SCSPTR register
Serial
the TDRE bit is 1, then write transmit data in the transmit data register (SCTDR). Also set
MPBT (multiprocessor bit transfer) to 0 or 1 in SCSSR. Finally, clear TDRE to 0.
it reads 1); if so, write data in SCTDR, then clear TDRE to 0.
to 0, set SPB0IO to 1, then clear TE to 0 in SCSCR.
data
Figure 13.9 Communication Among Processors Using Multiprocessor Format
Transmitting
MPB: Multiprocessor bit
Receiving
station A
(ID = 01)
station
(Example: Sending Data H'AA to Receiving Processor A)
specifies receiving station
ID transmit cycle =
H'01
Receiving
(MPB = 1)
station B
(ID = 02)
Serial communication circuit
receiving station specified
Data transmit cycle =
data transmission to
Receiving
station C
(ID = 03)
H'AA
by ID
(MPB = 0)
Receiving
(ID = 04)
station D
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