MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 112

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

MC68HC908LJ12
Freescale Semiconductor
NOTE:
—
Rev. 2.1
19.6608 MHz
29.4912 MHz
The values for P, E, N, L, and R can only be programmed when the PLL
is off (PLLON = 0).
Table 8-1
notation):
9.8304 MHz
CGMVCLK
10. Program the PLL registers accordingly:
10.0 MHz
8.0 MHz
16 MHz
20 MHz
32 MHz
32 MHz
32 MHz
32 MHz
a. In the PRE bits of the PLL control register (PCTL), program
b. In the VPR bits of the PLL control register (PCTL), program
d. In the PLL VCO range select register (PMRS), program the
e. In the PLL reference divider select register (PMDS), program
c. In the PLL multiplier select register low (PMSL) and the PLL
provides numeric examples (numbers are in hexadecimal
Clock Generator Module (CGM)
the binary equivalent of P.
the binary equivalent of E.
multiplier select register high (PMSH), program the binary
equivalent of N.
binary coded equivalent of L.
the binary coded equivalent of R.
19.6608 MHz
29.4912 MHz
9.8304 MHz
CGMPCLK
10.0 MHz
8.0 MHz
16 MHz
20 MHz
32 MHz
16 MHz
8 MHz
4 MHz
Table 8-1. Numeric Examples
2.4576 MHz
4.9152 MHz
7.3728 MHz
4.0 MHz
5.0 MHz
8.0 MHz
4.0 MHz
2.0 MHz
2.5 MHz
2.0 MHz
1.0 MHz
f
BUS
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
32.768 kHz
f
RCLK
Clock Generator Module (CGM)
R
1
1
1
1
1
1
1
1
1
1
1
12C
3D1
1E9
1E9
132
258
263
384
F5
F5
7B
N
Technical Data
P
0
0
0
0
0
0
0
0
1
2
3
E
0
1
1
1
2
2
2
2
2
2
2
D1
C0
D0
D0
D1
D0
D0
80
83
80
82
113
L