R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 854

• Manufacturer Part Number: R5S72011
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 19 Controller Area Network (RCAN-ET)
Bit 4 — Halt/Sleep Status Bit (GSR4): Indicates whether the CAN engine is in the halt/sleep
state or not. Please note that the clearing time of this flag is not the same as the setting time of
IRR12.
Please note that this flag reflects the status of the CAN engine and not of the full RCAN-ET IP.
RCAN-ET exits sleep mode and can be accessed once MCR5 is cleared. The CAN engine exits
sleep mode only after two additional transmission clocks on the CAN Bus.
Bit 3 — Reset Status Bit (GSR3): Indicates whether the RCAN-ET is in the reset state or not.
Bit 2 — Message Transmission in progress Flag (GSR2): Flag that indicates to the CPU if the
RCAN-ET is in Bus Off or transmitting a message or an error/overload flag due to error detected
during transmission. The timing to set TXACK is different from the time to clear GSR2. TXACK
is set at the 7
messages ready to be transmitted. It is also set by arbitration lost, bus idle, reception, reset or halt
transition.
Rev. 2.00 Sep. 07, 2007 Page 826 of 1164
REJ09B0321-0200
Bit 4: GSR4
0
1
Bit 3: GSR3
0
1
Bit 2: GSR2
0
1
th
bit of End Of Frame. GSR2 is set at the 3
Description
RCAN-ET is not in the Halt state or Sleep state (Initial value)
Halt mode (if MCR1 = 1) or Sleep mode (if MCR5 = 1)
[Setting condition] If MCR1 is set and the CAN bus is either in intermission or
idle or MCR5 is set and RCAN-ET is in the halt mode or RCAN-ET is moving
to Bus Off when MCR14 and MCR6 are both set
Description
RCAN-ET is not in the reset state
Reset state (Initial value)
[Setting condition] After an RCAN-ET internal reset (due to SW or HW reset)
Description
RCAN-ET is in Bus Off or a transmission is in progress
[Setting condition] Not in Bus Off and no transmission in progress (Initial
value)
rd
bit of intermission if there are no more