LP55231 datasheet(38/59 Pages) TI2

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LP55231

SNOSCR5D – MARCH 2013 – REVISED DECEMBER 2016

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Product Folder Links: LP55231

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(1)

This opcode is used with numerical operands.

(2)

This opcode is used with variables.

Table 4. LP55231 LED Driver Instructions

Inst.

Bit

[15]

Bit

[14]

Bit

[13]

Bit

[12]

Bit

[11]

Bit

[10]

Bit [9] Bit [8]

Bit

[7]

Bit [6] Bit [5] Bit [4] Bit [3] Bit [2] Bit [1] Bit [0]

ramp(1)

pre-

scale

step time

sign

# of increments

ramp(2)

pre-

scale

sign

step time

# of

increments

set_pwm(1

)

PWM value

set_pwm(2

)

PWM value

wait

pre-

scale

time

Table 5. LP55231 LED Mapping Instructions

Inst.

Bit

[15]

Bit

[14]

Bit

[13]

Bit

[12]

Bit

[11]

Bit

[10]

Bit

[9]

Bit

[8]

Bit

[7]

Bit

[6]

Bit

[5]

Bit [4]

Bit

[3]

Bit [2]

Bit

[1]

Bit [0]

mux_ld_start

SRAM address 0-95

mux_map_start

SRAM address 0-95

mux_ld_end

SRAM address 0 - 95

mux_sel

LED select

mux_clr

mux_map_next

mux_map_prev

mux_ld_next

mux_ld_prev

mux_ld_addr

SRAM address 0-95

mux_map_addr

SRAM address 0-95

(1)

This opcode is used with numerical operands.

(2)

This opcode is used with variables.

(3)

X means do not care.

Table 6. LP55231 Branch Instructions

Inst.

Bit

[15]

Bit

[14]

Bit

[13]

Bit

[12]

Bit

[11]

Bit

[10]

Bit

[9]

Bit [8]

Bit

[7]

Bit [6]

Bit [5]

Bit

[4]

Bit [3] Bit [2]

Bit [1] Bit [0]

rst

branch(1)

loop count

step number

branch(2)

step number

loop count

int

end

int

reset

trigger

wait for trigger

send a trigger

ext.

trig

X(3)

ext.

trig

X(3)

jne

Number of instructions to be skipped

if the operation returns true

variable

Number of instructions to be skipped

if the operation returns true

variable

jge

Number of instructions to be skipped

if the operation returns true

variable

Number of instructions to be skipped

if the operation returns true

variable

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