S9S12GN32F0MFT Freescale Semiconductor, S9S12GN32F0MFT Datasheet - Page 391

• 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

10.3.2.15 Autonomous Clock Trimming Register (CPMUACLKTR)
The CPMUACLKTR register configures the trimming of the Autonomous Clock (ACLK - trimmable
internal RC-Oscillator) which can be selected as clock source for some CPMU features
Read: Anytime
Write: Anytime
Freescale Semiconductor
0x02F3
ACLKTR[5:0]
After de-assert of System Reset a value is automatically loaded from the Flash memory.
Reset
Field
7–2
W
R
ACLKTR5
Figure 10-19. Autonomous Periodical Interrupt Trimming Register (CPMUACLKTR)
Autonomous Clock Trimming Bits — See
represents a signed number influencing the ACLK period time.
F
7
ACLKTR4
ACLKTR[5]
ACLKTR[4]
ACLKTR[3]
ACLKTR[2]
ACLKTR[1]
ACLKTR[0]
F
6
Bit
Table 10-17. CPMUACLKTR Field Descriptions
MC9S12G Family Reference Manual, Rev.1.23
Table 10-18. Trimming Effect of ACLKTR
ACLKTR3
Increases period
Decreases period less than ACLKTR[5] increased it
Decreases period less than ACLKTR[4]
Decreases period less than ACLKTR[3]
Decreases period less than ACLKTR[2]
Decreases period less than ACLKTR[1]
F
5
ACLKTR2
Table 10-18
F
4
Trimming Effect
Description
ACLKTR1
S12 Clock, Reset and Power Management Unit (S12CPMU)
for trimming effects. The ACLKTR[5:0] value
F
3
ACLKTR0
F
2
0
0
1
.
0
0
0
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