m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 134

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Table 2.7.3. Example of Setting the frequency synthesizer divide register (FSD)
Table 2.7.2. Example of Setting the Frequency Multiply Register (FSM)
Note 1: f
Frequency Multiplier
f
Frequency Multiply register is set to 255, multiplication is disabled and f
should be set so that f
synthesizer multiply register is set.
f
Frequency Divider
Clock f
register (FSD). When the frequency synthesizer divider register is set to 255, division is disabled and
f
set.
f
Note 1: Set f
VCO
VCO
SYN
SYN
48 MH
12 MH
1 MH
2 MH
4 MH
6 MH
8 MH
f
VCO
f
PIN
is generated via the Frequency Synthesizer Mul-tiply register (FSM: address 03DD
= f
= f
= f
SYN
SYN
Z
Z
Z
Z
Z
PIN
VCO
VCO
Z
Z
=f
VCO
X 2(n+1) n: FSM value
is a divided down version of f
. Table 2.7.3 shows some examples of how the frequency synthesizer division register is
/ 2(m+1) m: FSD value
SYN
page 125 of 354
/(m+1) when FSCCR4=1 and m=2.
to 12MHz or lower.
FSM Value
FSD Value
VCO
Dec (Hex)
Dec (Hex)
127 (7F
11 (0B
23 (17
1 (01
2 (02
2 (02
3 (03
5 (05
3 (03
2 (02
1 (01
becomes 48MHz. Table 2.7.2 shows some examples of how the frequency
16
16
16
16
16
16
16
16
16
16
16
)
)
)
)
)
)
)
)
)
)
)
VCO
16.00 MH
. f
48 MH
48 MH
48 MH
48 MH
48 MH
48 MH
SYN
f
VCO
is generated via the frequency synthesizer divide
f
Z
Z
Z
Z
Z
Z
187.50 kH
SYN
12.00 MH
Z
8.00 MH
6.00 MH
(Note 1)
Z
Z
Z
Z
2. Frequency synthesizer (PLL)
VCO
= f
PIN
. The value of n
16
). When the