DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 846
DS72030W200FPV
Manufacturer Part Number
DS72030W200FPV
Description
MPU, 32BIT, SH7203, ROMLESS, 240QFP
Manufacturer
Renesas Electronics America
Series
SH7200r
Datasheet
1.R5S72030W200FP.pdf
(1686 pages)
Specifications of DS72030W200FPV
Core Size
32bit
Program Memory Size
32KB
Cpu Speed
200MHz
Digital Ic Case Style
QFP
No. Of Pins
240
Supply Voltage Range
1.1V To 1.3V
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Section 16 Synchronous Serial Communication Unit (SSU)
(2)
Data Transmission
Figure 16.5 shows an example of transmission operation, and figure 16.6 shows a flowchart
example of data transmission.
When transmitting data, the SSU operates as shown below.
In master mode, the SSU outputs a transfer clock and data. In slave mode, when a low level signal
is input to the SCS pin and a transfer clock is input to the SSCK pin, the SSU outputs data in
synchronization with the transfer clock.
Writing transmit data to SSTDR after the TE bit is set to 1 clears the TDRE bit in SSSR to 0, and
the SSTDR contents are transferred to SSTRSR. After that, the SSU sets the TDRE bit to 1 and
starts transmission. At this time, if the TIE bit in SSER is set to 1, a transmit-data-empty SSTXI
interrupt is generated.
When 1-frame data has been transferred with TDRE = 0, the SSTDR contents are transferred to
SSTRSR to start the next frame transmission. When the 8th bit of transmit data has been
transferred with TDRE = 1, the TEND bit in SSSR is set to 1 and the state is retained. At this time,
if the TEIE bit is set to 1, a transmit-end SSTXI interrupt is generated. After transmission, the
output level of the SSCK pin is fixed high when CPOS = 0 and low when CPOS = 1.
While the ORER bit in SSSR is set to 1, transmission is not performed. Check that the ORER bit
is cleared to 0 before transmission.
Rev. 3.00 Sep. 28, 2009 Page 814 of 1650
REJ09B0313-0300
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