S9S12GN32F0MFT Freescale Semiconductor, S9S12GN32F0MFT Datasheet - Page 379

• Manufacturer Part Number: S9S12GN32F0MFT
• Description: 16-bit Microcontrollers - MCU 16-bit32k Flash 2k RAM
• Manufacturer: Freescale Semiconductor

Specifications of S9S12GN32F0MFT

• Rohs: yes
• Core: S12
• Processor Series: MC9S12G
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 2048 B
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: TSSOP-20
• Mounting Style: SMD/SMT

10.3.2.7
This register controls the PLL functionality.
Read: Anytime
Write: Anytime if PROT=0 (CPMUPROT register) and PLLSEL=1 (CPMUCLKS register). Else write has
no effect.
Freescale Semiconductor
0x003A
FM1, FM0
Reset
Field
5, 4
W
R
PLL Frequency Modulation Enable Bits — FM1 and FM0 enable frequency modulation on the VCOCLK. This
is to reduce noise emission. The modulation frequency is f
S12CPMU PLL Control Register (CPMUPLL)
0
0
7
Write to this register clears the LOCK and UPOSC status bits.
Care should be taken to ensure that the bus frequency does not exceed the
specified maximum when frequency modulation is enabled.
Figure 10-10. S12CPMU PLL Control Register (CPMUPLL)
0
0
6
MC9S12G Family Reference Manual, Rev.1.23
Table 10-7. CPMUPLL Field Descriptions
Table 10-8. FM Amplitude selection
FM1
FM1
0
5
0
0
1
1
0
1
0
1
FM0
NOTE
NOTE
FM0
0
4
Description
FM Amplitude /
FM off
±1%
±2%
±4%
S12 Clock, Reset and Power Management Unit (S12CPMU)
f
VCO
ref
0
0
3
divided by 16. See
Variation
0
0
2
Table 10-8
0
0
1
for coding.
0
0
0
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