DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1028

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

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

Section 19 Controller Area Network (RCAN-TL1)
The RCAN-TL1 has two state machines. One is for transmission, and the other is for reception.
1-1:
1-2:
2-1:
2-2:
3-1:
3-2:
Internal arbitration for the next transmission is also performed at the beginning of each error
delimiter in case of an error is detected on the CAN Bus. It is also performed at the beginning of
error delimiters following overload frame.
As the arbitration for transmission is performed at CRC delimiter, in case a remote frame request
is received into a Mailbox with ATX = 1 the answer can join the arbitration for transmission only
at the following Bus Idle, CRC delimiter or Error Delimiter.
Depending on the status of the CAN bus, following the assertion of the TXCR, the corresponding
Message abortion can be handled with a delay of maximum 1 CAN Frame.
Rev. 3.00 Sep. 28, 2009 Page 996 of 1650
REJ09B0313-0300
scheduler state
Error/Arb-Lost
TXPR/TXCR/
RCAN-TL1
Scheduler
start point
CAN bus
Set Point
state
When a TXPR bit(s) is set while the CAN bus is idle, the internal arbitration starts running
immediately and the transmission is started.
Operations for both transmission and reception starts at SOF. Since there is no reception
frame, RCAN-TL1 becomes transmitter.
At crc delimiter, internal arbitration to search next message transmitted starts.
Operations for both transmission and reception starts at SOF. Because of a reception frame
with higher priority, RCAN-TL1 becomes receiver. Therefore, Reception is carried out
instead of transmitting Frame-3.
At crc delimiter, internal arbitration to search next message transmitted starts.
Operations for both transmission and reception starts at SOF. Since a transmission frame
has higher priority than reception one, RCAN-TL1 becomes transmitter.
Bus Idle
1-1
Interm:
SOF:
EOF:
Message:
Tx Arb for
Frame-1
Figure 19.17 Internal Arbitration for transmission
SOF
Tx/Rx Arb for
Intermission Field
Start Of Frame
End Of Frame
Arbitration + Control + Data + CRC + Ack Field
Frame-1
1-2
Transmission
Message
Frame-1
Tx Arb for
Frame-3
2-1
EOF Interm
SOF
Tx/Rx Arb for
Frame-3/2
2-2
Reception
Message
Frame-2
Tx Arb for
Frame-3
3-1
EOF Interm
Transmission
SOF
Tx/Rx Arb for
Frame-3
Frame-3
3-2