MC9S12P64VQK Freescale Semiconductor, MC9S12P64VQK Datasheet - Page 226

• Manufacturer Part Number: MC9S12P64VQK
• Description: 16-bit Microcontrollers - MCU 16 BIT 64K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12P64VQK

• Rohs: yes
• Core: S12
• Processor Series: MC9S12P
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 64 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 4 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 5 V
• Operating Temperature Range: - 40 C to 105 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT
• Interface Type: I2C, SCI, SPI
• Program Memory Type: Flash

S12 Clock, Reset and Power Management Unit (S12CPMU)
7.3.2.17
The CPMUAPIRH and CPMUAPIRL registers allow the configuration of the autonomous periodical
interrupt rate.
Read: Anytime
Write: If APIFE=0, then write anytime, else writes have no effect.
The period can be calculated as follows depending on logical value of the APICLK bit:
226
0x02F4
0x02F5
APIR[15:0]
Reset
Reset
Field
15-0
W
W
R
R
APICLK=0: Period = 2*(APIR[15:0] + 1) * f
APICLK=1: Period = 2*(APIR[15:0] + 1) * Bus Clock period
APIR15
APIR7
Autonomous Periodical Interrupt Rate Bits — These bits define the time-out period of the API. See
Table 7-19
Figure 7-21. Autonomous Periodical Interrupt Rate High Register (CPMUAPIRH)
Autonomous Periodical Interrupt Rate High and Low Register
(CPMUAPIRH / CPMUAPIRL)
Figure 7-22. Autonomous Periodical Interrupt Rate Low Register (CPMUAPIRL)
0
0
7
7
= Unimplemented or Reserved
for details of the effect of the autonomous periodical interrupt rate bits.
APIR14
APIR6
Table 7-18. CPMUAPIRH / CPMUAPIRL Field Descriptions
0
0
6
6
S12P-Family Reference Manual, Rev. 1.13
APIR13
APIR5
0
0
5
5
APIR12
APIR4
0
0
4
4
ACLK
Description
APIR11
APIR3
0
0
3
3
APIR10
APIR2
0
0
2
2
Freescale Semiconductor
APIR9
APIR1
0
0
1
1
APIR8
APIR0
0
0
0
0