MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 354

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

S12 Clock, Reset and Power Management Unit (S12CPMU)
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
10.3.2.16 Autonomous Periodical Interrupt Rate High and Low Register
The CPMUAPIRH and CPMUAPIRL registers allow the configuration of the autonomous periodical
interrupt rate
354
0x02F3
ACLKTR[5:0]
After de-assert of System Reset a value is automatically loaded from the Flash memory.
Reset
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
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.
.
(CPMUAPIRH / CPMUAPIRL)
F
7
ACLKTR4
ACLKTR[5]
ACLKTR[4]
ACLKTR[3]
ACLKTR[2]
ACLKTR[1]
ACLKTR[0]
F
6
Bit
Table 10-17. CPMUACLKTR Field Descriptions
Table 10-18. Trimming Effect of ACLKTR
MC9S12G Family Reference Manual,
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
for trimming effects. The ACLKTR[5:0] value
F
3
Rev.1.01
ACLKTR0
F
2
Freescale Semiconductor
0
0
1
.
0
0
0