CSM9S12XDT512SLK Freescale Semiconductor, CSM9S12XDT512SLK Datasheet - Page 1042
CSM9S12XDT512SLK
Manufacturer Part Number
CSM9S12XDT512SLK
Description
KIT STUDENT LEARNING 16BIT
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12XD64CAA.pdf
(1348 pages)
Specifications of CSM9S12XDT512SLK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chapter 25 2 Kbyte EEPROM Module (S12XEETX2KV1)
25.3.2.1
The ECLKDIV register is used to control timed events in program and erase algorithms.
All bits in the ECLKDIV register are readable, bits 6–0 are write once and bit 7 is not writable.
25.3.2.2
This register is reserved for factory testing and is not accessible.
All bits read 0 and are not writable.
25.3.2.3
This register is reserved for factory testing and is not accessible.
1044
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 25.4.1.1, “Writing the ECLKDIV Register”
Enable Prescalar by 8
EEPROM Clock Divider Register (ECLKDIV)
RESERVED1
RESERVED2
0
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
PRDIV8
Figure 25-4. EEPROM Clock Divider Register (ECLKDIV)
0
0
0
6
6
Table 25-2. ECLKDIV Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.21
EDIV5
0
0
0
5
5
Figure 25-5. RESERVED1
EDIV4
0
0
0
4
4
Description
for more information.
EDIV3
0
0
0
3
3
EDIV2
0
0
0
2
2
Freescale Semiconductor
EDIV1
0
0
0
1
1
EDIV0
0
0
0
0
0
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