R0K572011S000BE Renesas Electronics America, R0K572011S000BE Datasheet - Page 878

• Manufacturer Part Number: R0K572011S000BE
• Description: KIT STARTER FOR SH7201
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572011S000BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• For Use With/related Products: SH7201
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 19 Controller Area Network (RCAN-ET)
When the RCAN-ET changes the state of any TXPR bit position to a '0', an empty slot interrupt
(IRR8) may be generated. This indicates that either a successful or an aborted mailbox
transmission has just been made. If a message transmission is successful it is signalled in the
TXACK register, and if a message transmission abortion is successful it is signalled in the
ABACK register. By checking these registers, the contents of the Message of the corresponding
Mailbox may be modified to prepare for the next transmission.
• TXPR1
Note: * Any write operation is ignored.
Read value is always H'0000. Long word access is mandatory when reading or writing
TXPR1/TXPR0. Writing any value to TXPR1 is allowed, however, write operation to TXPR1 has
no effect. Writing to the bit 0 in TXPR0 has no effect.
• TXPR0
Note: * it is possible only to write a '1' for a Mailbox configured as transmitter.
Bit 15 to 1 — Indicates that the corresponding Mailbox is requested to transmit a CAN Frame.
The bit 15 to 1 corresponds to Mailbox-15 to 1 respectively. When multiple bits are set, the order
of the transmissions is governed by the MCR2 – CAN-ID or Mailbox number.
Bit 0— Reserved: This bit is always '0' as this is a receive-only Mailbox. Writing a '1' to this bit
position has no effect. The returned value is '0'.
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Bit[15:1]:TXPR0
0
1
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W*
R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W*
15
15
0
0
14
14
0
0
Description
Transmit message idle state in corresponding mailbox (Initial value)
[Clearing Condition] Completion of message transmission or message
transmission abortion (automatically cleared)
Transmission request made for corresponding mailbox
13
13
0
0
12
12
0
0
11
11
0
0
10
10
0
0
9
0
9
0
TXPR0[15:1]
TXPR1[15:0]
8
0
8
0
7
0
7
0
6
0
6
0
5
0
5
0
4
0
4
0
R01UH0026EJ0300 Rev. 3.00
3
0
3
0
2
0
2
0
SH7201 Group
Sep 24, 2010
1
0
1
0
—
0
0
0
0
0