upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 589

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Caution:
Caution:
(b) Write
EFSD
Set EFSD
GOM
Set GOM
0
1
0
1
Other than above
0
1
0
1
To request forced shut down, the GOM bit must be cleared to 0 immediately after the
EFSD bit has been set to 1. If access to another register (including reading the CnG-
MCTRL register) is executed without clearing the GOM bit immediately after the EFSD
bit has been set to 1, the EFSD bit is forcibly cleared to 0, and the forced shut down
request is invalid.
The GOM bit is cleared to 0 only in the initialization mode or immediately after the
EFSD bit is set to 1.
Forced shut down by GOM = 0 disabled.
Forced shut down by GOM = 0 enabled.
CAN module is disabled from operating.
CAN module is enabled to operate.
Figure 16-23: CAN Global Control Register (CnGMCTRL) Format (2/2)
No change in EFSD bit.
EFSD bit set to 1.
Clear GOM
1
0
GOM bit cleared to 0.
GOM bit set to 1.
No change in GOM bit.
User’s Manual U16702EE3V2UD00
Chapter 16 FCAN Controller
Bit enabling forced shut down
Global operation mode bit
EFSD bit setting
GOM bit setting
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