MC9S12XDT512CAA Freescale, MC9S12XDT512CAA Datasheet - Page 1077
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
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All bits in the ECLKDIV register are readable, bits 6–0 are write once and bit 7 is not writable.
26.3.2.2
This register is reserved for factory testing and is not accessible.
All bits read 0 and are not writable.
26.3.2.3
This register is reserved for factory testing and is not accessible.
Freescale Semiconductor
EDIV[5:0]
EDIVLD
PRDIV8
Reset
Reset
Field
5–0
7
6
W
W
R
R
EDIVLD
Clock Divider Loaded
0 Register has not been written.
1 Register has been written to since the last reset.
0 The oscillator clock is directly fed into the ECLKDIV divider.
1 Enables a Prescalar by 8, to divide the oscillator clock before feeding into the clock divider.
Clock Divider Bits — The combination of PRDIV8 and EDIV[5:0] effectively divides the EEPROM module input
oscillator clock down to a frequency of 150 kHz – 200 kHz. The maximum divide ratio is 512. Please refer to
Section 26.4.1.1, “Writing the ECLKDIV Register”
Enable Prescalar by 8
RESERVED1
RESERVED2
0
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
PRDIV8
Figure 26-4. EEPROM Clock Divider Register (ECLKDIV)
0
0
0
6
6
Table 26-3. ECLKDIV Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.21
EDIV5
0
0
0
5
5
Figure 26-5. RESERVED1
EDIV4
0
0
0
4
4
Description
for more information.
EDIV3
Chapter 26 4 Kbyte EEPROM Module (S12XEETX4KV2)
0
0
0
3
3
EDIV2
0
0
0
2
2
EDIV1
0
0
0
1
1
EDIV0
0
0
0
0
0
1079
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