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MC34708 bảng dữ liệu(PDF) 86 Page - Freescale Semiconductor, Inc

tên linh kiện MC34708
Giải thích chi tiết về linh kiện  Power Management Integrated Circuit (PMIC) for i.MX50/53 Families
PDF  159 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC34708 bảng dữ liệu(HTML) 86 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
86
MC34708
Functional Block Description
7.8.2
PWM Outputs
There are two PWM outputs on the MC34708 PWM1 and PWM2 and which are controlled by the PWMxDUTY and
PWMxCLKDIV registers shown in Table 79.The base clock will be the 2.0 MHz divided by 32.
32.768 kHz Crystal Oscillator RTC Block Description and Application Information
PUS[1:0]
Pull-up/Pull-down enable
00: 10 K active pull-down
01: 10 K active pull-up
10: 100 K active pull-down
11: 100 K active pull-up (default)
SRE[1:0]
Slew rate enable
00: slow (default)
01: normal
10: fast
11: very fast
x= 0, 1, 2, or 3
Table 79. PWMx Duty Cycle Programming
PWMxDC[5:0]((63))
Duty Cycle
000000
0/32, Off (default)
000001
1/32
…
…
010000
16/32
…
…
011111
31/32
1xxxxx
32/32, Continuously On
Notes
63.
“x” represent 1 and 2
Table 80. PWMx Clock Divider Programming
PWMxCLKDIV[5:0]((64))
Duty Cycle
000000
Base Clock
000001
Base Clock / 2
…
…
001111
Base Clock / 16
…
…
111111
Base Clock / 64
Notes
64.
“x” represent 1 and 2
Table 78. GPIOLVx Control
SPI Bit
Description



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