M16C1N Datasheet, PDF (39/238 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/10 SERIES

M16C/1N Group
6. Clock Generation Circuit
CAN0 clock select register (Note 1, 2)
b7 b6 b5 b4 b3 b2 b1 b0
0
Symbol
CCLKR
Address
025F16
When reset
X000XXXX2
Bit symbol
Bit name
Function
RW
Nothing is assigned.
In an attempt to write to these bits, write "0". The value, if read, turns out to be
indeterminate.
CCLK4
CAN0 clock select bit
b6 b5 b4
0 0 0 : No division mode
RW
0 0 1 : Division by 2 mode
CCLK5
0 1 0 : Division by 4 mode
0 1 1 : Division by 8 mode
RW
1 0 0 : Division by 16 mode
CCLK6
1 0 1 : Inhibited
1 1 0 : Inhibited
RW
1 1 1 : Inhibited
Reserved bit
Set to "0"
RW
Note 1: Set bit 0 of the protect register (address 000A16) to "1" before writing in this register.
Note 2: Change the register value only when the CAN module is in Reset/Initialization mode (the bit 0 of the CAN
Control Register (address 023016) is "1").
Figure 6.5 CAN0 clock select register
Rev.1.00 Oct 20, 2004 page 27 of 222
REJ09B0007-0100Z