MC9S12XDP512MAG Freescale, MC9S12XDP512MAG Datasheet - Page 338
MC9S12XDP512MAG
Manufacturer Part Number
MC9S12XDP512MAG
Description
Manufacturer
Freescale
Datasheet
1.MC9S12XDP512MAG.pdf
(1348 pages)
Specifications of MC9S12XDP512MAG
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
40MHz
Interface Type
CAN/I2C/SCI/SPI
Total Internal Ram Size
32KB
# I/os (max)
119
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/3.15V
On-chip Adc
2(24-chx10-bit)
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
144
Package Type
LQFP
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
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Chapter 7 Enhanced Capture Timer (S12ECT16B8CV2)
7.3.2.20
Read: Anytime
Write only used in the flag clearing mechanism for bit 7. Writing a one to bit 7 clears the flag. Writing a
zero will not affect the current status of the bit.
All bits reset to zero.
338
POLF[3:0]
Reset
MCZF
Field
3:0
7
W
R
MCZF
Modulus Counter Underflow Flag — The flag is set when the modulus down-counter reaches 0x0000.
The flag indicates when interrupt conditions have occurred. The flag can be cleared via the normal flag clearing
mechanism (writing a one to the flag) or via the fast flag clearing mechanism (Reference TFFCA bit in
Section 7.3.2.6, “Timer System Control Register 1
First Input Capture Polarity Status — These are read only bits. Writes to these bits have no effect.
Each status bit gives the polarity of the first edge which has caused an input capture to occur after capture latch
has been read.
Each POLFx corresponds to a timer PORTx input.
0 The first input capture has been caused by a falling edge.
1 The first input capture has been caused by a rising edge.
16-Bit Modulus Down-Counter FLAG Register (MCFLG)
0
7
When TFFCA = 1, the flag cannot be cleared via the normal flag clearing
mechanism (writing a one to the flag). Reference
System Control Register 1
Figure 7-42. 16-Bit Modulus Down-Counter FLAG Register (MCFLG)
= Unimplemented or Reserved
0
0
6
MCPR1
0
0
1
1
Table 7-23. Modulus Counter Prescaler Select
Table 7-24. MCFLG Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.21
0
0
5
MCPR0
(TSCR1)”.
0
1
0
1
NOTE
0
0
4
Description
(TSCR1)”).
Prescaler Division
POLF3
0
3
Section 7.3.2.6, “Timer
16
1
4
8
POLF2
0
2
POLF1
Freescale Semiconductor
0
1
POLF0
0
0
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