CSM9S12XDT512SLK Freescale Semiconductor, CSM9S12XDT512SLK Datasheet - Page 376
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 8 Pulse-Width Modulator (S12PWM8B8CV1)
Read: Anytime
Write: Anytime (causes the scale counter to load the PWMSCLA value)
8.3.2.10
PWMSCLB is the programmable scale value used in scaling clock B to generate clock SB. Clock SB is
generated by taking clock B, dividing it by the value in the PWMSCLB register and dividing that by two.
Any value written to this register will cause the scale counter to load the new scale value (PWMSCLB).
Read: Anytime
Write: Anytime (causes the scale counter to load the PWMSCLB value).
8.3.2.11
The registers PWMSCNTA and PWMSCNTB are reserved for factory testing of the PWM module and are
not available in normal modes.
Read: Always read $00 in normal modes
Write: Unimplemented in normal modes
376
Reset
Reset
Reset
W
W
W
R
R
R
Clock SB = Clock B / (2 * PWMSCLB)
Bit 7
Bit 7
PWM Scale B Register (PWMSCLB)
Reserved Registers (PWMSCNTx)
0
0
0
0
7
7
7
When PWMSCLB = $00, PWMSCLB value is considered a full scale value
of 256. Clock B is thus divided by 512.
= Unimplemented or Reserved
0
0
0
0
6
6
6
6
6
Figure 8-11. PWM Scale A Register (PWMSCLA)
Figure 8-12. PWM Scale B Register (PWMSCLB)
Figure 8-13. Reserved Registers (PWMSCNTx)
MC9S12XDP512 Data Sheet, Rev. 2.21
0
0
0
0
5
5
5
5
5
NOTE
0
0
0
0
4
4
4
4
4
0
0
0
0
3
3
3
3
3
0
0
0
0
2
2
2
2
2
Freescale Semiconductor
0
0
0
0
1
1
1
1
1
Bit 0
Bit 0
0
0
0
0
0
0
0
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