Datasheet

Chapter 14 Voltage Regulator (S12VREG3V3V5)
MC9S12XDP512 Data Sheet, Rev. 2.21
562 Freescale Semiconductor
14.3.2.5 Autonomous Periodical Interrupt Rate High and Low Register
(VREGAPIRH / VREGAPIRL)
The VREGAPIRH and VREGAPIRL register allows the configuration of the VREG_3V3 autonomous
periodical interrupt rate.
76543210
R0000
APIR11 APIR10 APIR9 APIR8
W
Reset 00000000
= Unimplemented or Reserved
Figure 14-6. Autonomous Periodical Interrupt Rate High Register (VREGAPIRH)
76543210
R
APIR7 APIR6 APIR5 APIR4 APIR3 APIR2 APIR1 APIR0
W
Reset 00000000
Figure 14-7. Autonomous Periodical Interrupt Rate Low Register (VREGAPIRL)
Table 14-7. VREGAPIRH / VREGAPIRL Field Descriptions
Field Description
11-0
APIR[11:0]
Autonomous Periodical Interrupt Rate Bits — These bits define the timeout period of the API. See Table 14-8
for details of the effect of the autonomous periodical interrupt rate bits. Writable only if APIFE = 0 of VREGAPICL
register.