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11.10 Control Registers
(1) FCAN clock selection register (PRM04)
The PRM04 register is used to select the base clock (f
The clock is selected according to the clock frequency.
This register can be read/written in 8-bit or 1-bit units.
Caution Set this register before using FCAN.
7
6
PRM04
0
0
Bit Position
Bit Name
1, 0
PRM5,
PRM4
Remark f
: Internal system clock
XX
CHAPTER 11 FCAN CONTROLLER
5
4
3
0
0
0
Specifies FCAN base clock (f
MEM1
PRM5
PRM4
0
0
f
/4 (when f
XX
0
1
f
/2 (when 16 MHz < f
XX
1
0
f
/3 (when 32 MHz < f
XX
1
1
f
(when f
XX
User's Manual U14492EJ3V0UD
).
MEM1
2
1
0
0
PRM5
PRM4
Function
).
Input Clock Specification
> 48 MHz)
XX
≤ 32 MHz)
XX
≤ 48 MHz)
XX
≤ 16 MHz)
XX
Address
Initial value
FFFFF930H
00H
549
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