MC9328MX1VM20 Freescale, MC9328MX1VM20 Datasheet - Page 77

• Manufacturer Part Number: MC9328MX1VM20
• Manufacturer: Freescale

Specifications of MC9328MX1VM20

• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

4.12
The PWM can be programmed to select one of two clock signals as its source frequency. The selected
clock signal is passed through a divider and a prescaler before being input to the counter. The output is
available at the pulse-width modulator output (PWMO) external pin. Its timing diagram is shown in
Figure 56
Freescale Semiconductor
1
2
3
4
Ref No.
Ref
No.
Loading capacitor condition is less than or equal to 30pF.
An external resistor (100 ~ 200 ohm) should be inserted in series to provide current control on the MS_SDIO pin,
because of a possibility of signal conflict between the MS_SDIO pin and Memory Stick SDIO pin when the pin
direction changes.
If the MSC2[RED] bit = 0, MSHC samples MS_SDIO input data at MS_SCLKO rising edge.
If the MSC2[RED] bit = 1, MSHC samples MS_SDIO input data at MS_SCLKO falling edge.
12
13
14
15
16
2a
2b
3a
1
Pulse-Width Modulator
and the parameters are listed in
MS_SDIO output delay time
MS_SDIO input setup time for MS_SCLKO rising edge (RED bit = 0)
MS_SDIO input hold time for MS_SCLKO rising edge (RED bit = 0)
MS_SDIO input setup time for MS_SCLKO falling edge (RED bit = 1)
MS_SDIO input hold time for MS_SCLKO falling edge (RED bit = 1)
System CLK frequency
Clock high time
Clock low time
Clock fall time
System Clock
PWM Output
Parameter
Table 31. MSHC Signal Timing Parameter Table (Continued)
1
1
1
Table 32. PWM Output Timing Parameter Table
1
Figure 56. PWM Output Timing Diagram
1,2
Parameter
MC9328MX1 Technical Data, Rev. 7
Minimum
2a
Table
3.3
7.5
0
–
4a
32.
1.8 ± 0.1 V
2b
Maximum
87
–
–
5
Functional Description and Application Information
1
3a
3
4
3
4
Minimum
5/10
5/10
Minimum
0
–
18
23
3.0 ± 0.3 V
–
0
0
3.0 ± 0.3 V
3b
4b
Maximum
Maximum
5/10
100
–
–
3
–
–
–
–
Unit
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
77