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PC312XDP512F0CFVR Datasheet(PDF) 561 Page - Freescale Semiconductor, Inc

Part # PC312XDP512F0CFVR
Description  HCS12X Microcontrollers
PDF  1348 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

PC312XDP512F0CFVR Datasheet(HTML) 561 Page - Freescale Semiconductor, Inc

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Chapter 14 Voltage Regulator (S12VREG3V3V5)
MC9S12XDP512 Data Sheet, Rev. 2.21
Freescale Semiconductor
561
14.3.2.4
Autonomous Periodical Interrupt Trimming Register (VREGAPITR)
The VREGAPITR register allows to trim the API timeout period.
76543210
R
APITR5
APITR4
APITR3
APITR2
APITR1
APITR0
00
W
Reset
01
01
01
01
01
01
00
1. Reset value is either 0 or preset by factory. See Device User Guide for details.
= Unimplemented or Reserved
Figure 14-5. Autonomous Periodical Interrupt Trimming Register (VREGAPITR)
Table 14-5. VREGAPITR Field Descriptions
Field
Description
7–2
APITR[5:0]
Autonomous Periodical Interrupt Period Trimming Bits — See Table 14-6 for trimming effects.
Table 14-6. Trimming Effect of APIT
Bit
Trimming Effect
APITR[5]
Increases period
APITR[4]
Decreases period less than APITR[5] increased it
APITR[3]
Decreases period less than APITR[4]
APITR[2]
Decreases period less than APITR[3]
APITR[1]
Decreases period less than APITR[2]
APITR[0]
Decreases period less than APITR[1]



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