mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 122

• Manufacturer Part Number: mc9s12xf512
• Description: S12x Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 3 Voltage Regulator (S12VREGL3V3V1)
3.3.2.4
The VREGAPITR register allows to trim the API timeout period.
122
0x02F3
APITR[5:0]
1. Reset value is either 0 or preset by factory. See Section 1 (Device Overview) for details.
Reset
Field
7–2
W
R
APITR5
Autonomous Periodical Interrupt Period Trimming Bits — See
Autonomous Periodical Interrupt Trimming Register (VREGAPITR)
0
7
Figure 3-4. Autonomous Periodical Interrupt Trimming Register (VREGAPITR)
1
= Unimplemented or Reserved
APITR4
APITR[5]
APITR[4]
APITR[3]
APITR[2]
APITR[1]
APITR[0]
0
6
1
Bit
MC9S12XF - Family Reference Manual, Rev.1.19
Table 3-7. VREGAPITR Field Descriptions
Increases period
Decreases period less than APITR[5] increased it
Decreases period less than APITR[4]
Decreases period less than APITR[3]
Decreases period less than APITR[2]
Decreases period less than APITR[1]
APITR3
Table 3-8. Trimming Effect of APIT
0
5
1
APITR2
0
4
1
Trimming Effect
Description
APITR1
0
3
1
Table 3-8
APITR0
0
2
1
for trimming effects.
Freescale Semiconductor
0
0
1
0
0
0