Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 Manual De Usuario
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DEMO9S12XHY256
Voltage Regulator (S12VREGL3V3V1)
MC9S12XHY-Family Reference Manual Rev. 1.04
Freescale Semiconductor
305
9.3.2.5
Autonomous Periodical Interrupt Rate High and Low Register
(VREGAPIRH / VREGAPIRL)
(VREGAPIRH / VREGAPIRL)
The VREGAPIRH and VREGAPIRL register allows the configuration of the VREG_3V3 autonomous
periodical interrupt rate.
periodical interrupt rate.
0x02F4
7
6
5
4
3
2
1
0
R
APIR15
APIR14
APIR13
APIR12
APIR11
APIR10
APIR9
APIR8
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 9-5. Autonomous Periodical Interrupt Rate High Register (VREGAPIRH)
0x02F5
7
6
5
4
3
2
1
0
R
APIR7
APIR6
APIR5
APIR4
APIR3
APIR2
APIR1
APIR0
W
Reset
0
0
0
0
0
0
0
0
Figure 9-6. Autonomous Periodical Interrupt Rate Low Register (VREGAPIRL)
Table 9-9. VREGAPIRH / VREGAPIRL Field Descriptions
Field
Description
15-0
APIR[15:0]
Autonomous Periodical Interrupt Rate Bits — These bits define the timeout period of the API. See
for details of the effect of the autonomous periodical interrupt rate bits. Writable only if APIFE = 0 of VREGAPICL
register.
register.