MC9S12XDT512CAA Freescale, MC9S12XDT512CAA Datasheet - Page 1112
MC9S12XDT512CAA
Manufacturer Part Number
MC9S12XDT512CAA
Description
Manufacturer
Freescale
Datasheet
1.MC9S12XDT512CAA.pdf
(1348 pages)
Specifications of MC9S12XDT512CAA
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
40MHz
Interface Type
CAN/I2C/SCI/SPI
Total Internal Ram Size
32KB
# I/os (max)
59
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
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
Available stocks
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Company:
Part Number:
MC9S12XDT512CAA
Manufacturer:
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Quantity:
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Chapter 27 512 Kbyte Flash Module (S12XFTX512K4V2)
27.3.2.1
The FCLKDIV register is used to control timed events in program and erase algorithms.
All bits in the FCLKDIV register are readable, bits 6-0 are write once and bit 7 is not writable.
27.3.2.2
The FSEC register holds all bits associated with the security of the MCU and Flash module.
1114
RESERVED2
RESERVED3
RESERVED4
FDIV[5:0]
PRDIV8
FDIVLD
Register
Reset
Field
Name
5-0
7
6
W
R
FDIVLD
Clock Divider Loaded.
0 Register has not been written.
1 Register has been written to since the last reset.
Enable Prescalar by 8
0 The oscillator clock is directly fed into the clock divider
1 The oscillator clock is divided by 8 before feeding into the clock divider.
Clock Divider Bits — The combination of PRDIV8 and FDIV[5:0] must divide the oscillator clock down to a
frequency of 150 kHz–200 kHz. The maximum divide ratio is 512. Please refer to
FCLKDIV Register”
Flash Clock Divider Register (FCLKDIV)
Flash Security Register (FSEC)
0
7
W
W
W
R
R
R
Bit 7
= Unimplemented or Reserved
0
0
0
PRDIV8
Figure 27-3. FTX512K4 Register Summary (continued)
0
6
Figure 27-4. Flash Clock Divider Register (FCLKDIV)
for more information.
.
6
0
0
0
Table 27-3. FCLKDIV Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.21
FDIV5
0
5
5
0
0
0
FDIV4
0
4
Description
4
0
0
0
.
FDIV3
0
3
3
0
0
0
FDIV2
0
2
2
0
0
0
Section 27.4.1.1, “Writing the
Freescale Semiconductor
FDIV1
0
1
1
0
0
0
FDIV0
Bit 0
0
0
0
0
0
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