R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 536

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 13 Controller Area Network (HCAN)
13.4.5
The HCAN is provided with an HCAN sleep mode that places the HCAN module in the sleep
state in order to reduce current consumption. Figure 13.13 shows a flowchart of the HCAN sleep
mode.
Rev. 3.00 Mar. 14, 2006 Page 498 of 804
REJ09B0104-0300
HCAN Sleep Mode
CAN bus communication possible
Initialize TEC and REC
11 recessive bits
clearing method
Bus operation?
Sleep mode
Yes
IMR12 = 1?
MCR7 = 0?
GSR3 = 1?
Yes
MCR5 = 1
Yes
IRR12 = 1
Yes
MCR5 = 0
received?
Bus idle?
Figure 13.13 HCAN Sleep Mode Flowchart
Yes (manual)
No
No
No
No
No (automatic)
No
Clear sleep mode?
CPU interrupt
GSR3 = 1?
MCR5 = 0
: Settings by user
: Processing by hardware
Yes
Yes
No
No