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LM8322 Datasheet(PDF) 22 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM8322
Description  Mobile I/O Companion Supporting Key-Scan, I/O Expansion, PWM, and ACCESS.bus Host Interface
PDF  42 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM8322 Datasheet(HTML) 22 Page - National Semiconductor (TI)

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14.10.1 PWM Channel 0 Script
Script
Command
Address
PWM_WRITE
Parameter 1
PWM_WRITE
Parameter 2
PWM_WRITE
Parameter 3
Script
Command
Description
0x00
0x01
0x40
0x00
SET_PWM
Initialize channel for 0% duty cycle
0x01
0x05
0xE2
0x00
TRIGGER
Wait for trigger from channel 2
0x02
0x09
0x07
0x7E
RAMP
Ramp up by 126 steps
0x03
0x0D
0x07
0x7E
RAMP
Ramp up by 126 steps
0x04
0x11
0x07
0xFE
RAMP
Ramp down by 126 steps
0x05
0x15
0x07
0xFE
RAMP
Ramp down by 126 steps
0x06
0x19
0xA1
0x82
BRANCH
Loop 2 times starting at address 0x02
0x07
0x1D
0xC8
0x00
END
Terminate script and assert IRQ to host
14.10.2 PWM Channel 1 Script
Script
Command
Address
PWM_WRITE
Parameter 1
PWM_WRITE
Parameter 2
PWM_WRITE
Parameter 3
Script
Command
Description
0x00
0x02
0x40
0xFF
SET_PWM
Initialize channel for 100% duty cycle
0x01
0x06
0xE2
0x00
TRIGGER
Wait for trigger from channel 2
0x02
0x0A
0x0F
0xFE
RAMP
Ramp down by 126 steps
0x03
0x0E
0x0F
0xFE
RAMP
Ramp down by 126 steps
0x04
0x12
0x0F
0x7E
RAMP
Ramp up by 126 steps
0x05
0x16
0x0F
0x7E
RAMP
Ramp up by 126 steps
0x06
0x1A
0xA2
0x02
BRANCH
Loop 3 times starting at address 0x02
0x07
0x1E
0xE0
0x08
TRIGGER
Send trigger to channel 2
0x08
0x22
0xC8
0x00
END
Terminate script and assert IRQ to host
14.10.3 PWM Channel 2 Script
Script
Command
Address
PWM_WRITE
Parameter 1
PWM_WRITE
Parameter 2
PWM_WRITE
Parameter 3
Script
Command
Description
0x00
0x03
0x40
0x00
SET_PWM
Initialize channel for 0% duty cycle
0x01
0x07
0x03
0x7E
RAMP
Ramp up by 126 steps
0x02
0x0B
0x03
0x7E
RAMP
Ramp up by 126 steps
0x03
0x0F
0x03
0xFE
RAMP
Ramp down by 126 steps
0x04
0x13
0x03
0xFE
RAMP
Ramp down by 126 steps
0x05
0x17
0xE1
0x06
TRIGGER
Send triggers to channels 0 and 1,
wait for trigger from channel 1
0x06
0x1B
0x03
0x7E
RAMP
Ramp up by 126 steps
0x07
0x1F
0x03
0x7E
RAMP
Ramp up by 126 steps
0x08
0x23
0x03
0xFE
RAMP
Ramp down by 126 steps
0x09
0x27
0x03
0xFE
RAMP
Ramp down by 126 steps
0x0A
0x2B
0xC8
0x00
END
Terminate script and assert IRQ to host
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