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LM8328TMX/NOPB 데이터시트(PDF) 21 Page - Texas Instruments

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부품명 LM8328TMX/NOPB
상세설명  LM8328 Mobile I/O Companion Supporting Keyscan, I/O Expansion, PWM, and ACCESS.bus Host Interface
PDF  56 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
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LM8328TMX/NOPB 데이터시트(HTML) 21 Page - Texas Instruments

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LM8328
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SNLS328A – AUGUST 2011 – REVISED MARCH 2013
PWM TIMER CONTROL REGISTERS
The LM8328 provides three host-programmable PWM outputs useful for smooth LED brightness modulation. All
PWM timer control registers are mapped in the range from 0x60 to 0x7F. This paragraph describes the functions
of the associated registers down to the bit level.
TIMCFGx - PWM Timer 0, 1 and 2 Configuration Registers
Table 30. TIMCFGx - PWM Timer 0, 1 and 2 Configuration Registers
Register - Name
Address
Type
Register Function
TIMCFG0
0x60
This register configures interrupt masking and handles PWM start/stop
TIMCFG1
0x68
R/W
control of the associated PWM channel.
TIMCFG2
0x70
Bit - Name
Bit
Default
Bit Function
(x = 0, 1 or 2)
Interrupt mask for PWM CYCIRQx (see register TIMRIS)
CYCIRQxMSK
4
0x0
0: interrupt enabled
1: interrupt masked
(reserved)
3:0
0x0
(reserved)
PWMCFGx - PWM Timer 0, 1 and 2 Configuration Control Registers
Table 31. PWMCFGx - PWM Timer 0, 1 and 2 Configuration Control Registers
Register - Name
Address
Type
Register Function
This register defines interrupt masking and the output behavior for the
PWMCFG0
0x61
associated PWM channel.
PWMCFG1
0x69
R/W
PGEx is used to start and stop the PWM script execution.
PWMENx sets the PWM output to either reflect the generated pattern or
PWMCFG2
0x71
the value configured in PWMPOLx.
Bit - Name
Bit
Default
Bit Function
(x = 0, 1 or 2)
Mask for CDIRQx
CDIRQxMSK
3
0x0
0: CDIRQx enabled
1: CDIRQx disabled/masked
Pattern Generator Enable. Start/Stop PWM command processing for this
channel. Script execution is started always from beginning.
PGEx
2
0x0
0: Pattern Generator disabled
1: Pattern Generator enabled
0: PWM disabled. PWM timer output assumes value programmed in
PWMPOL.
PWMENx
1
0x0
1: PWM enabled
Off-state of PWM output, when PWMEN=0.
PWMPOLx
0
0x0
0: PWM off-state is low
1: PWM off-state is high
Copyright © 2011–2013, Texas Instruments Incorporated
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