LP5569 datasheet(41/86 Pages) TI1

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LP5569

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SNVSAP8 – JULY 2017

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Table 14. LP5569_MAP Registers (continued)

Address

Acronym

Section

81h

LED_FAULT1

LED [8] Fault Status

82h

LED_FAULT2

LED [7:0] Fault Status

83h

GENERAL_FAULT

CP Cap, UVLO and TSD Fault Status

8.6.1.1 CONFIG Register (Address = 0h) [reset = 0h]

CONFIG is shown in Figure 20 and described in Table 15.

Return to Summary Table.

Configuration Register

Figure 20. CONFIG Register

RESERVED

chip_en

RESERVED

R/W-0h

Table 15. CONFIG Register Field Descriptions

Bit

Field

Type

Reset

Description

RESERVED

R/W

chip_en

R/W

0 = LP5569 not enabled (default)

1 = LP5569 enabled

5–0

RESERVED

R/W

Reserved

8.6.1.2 LED_ENGINE_CONTROL1 Register (Address = 1h) [reset = 0h]

LED_ENGINE_CONTROL1 is shown in Figure 21 and described in Table 16.

Return to Summary Table.

Execution states are defined in this register, and they are only applicable when the corresponding mode register

in LED_ENGINE_CONTROL2 is set to the run mode. Execution-state values may be written by the host in other

modes, but the engine disregards the write until the mode changes to run mode. The fields in this register define

how the program is executed out of SRAM:

HOLD: The engine does not execute any instructions, but the program counter holds its current value unless

overwritten by the host. This is the only state in which the PC can be written.

STEP: Executes a single instruction, increments the PC, and then changes to the hold state. If the instruction is a

ramp or wait, the engine waits for this instruction to complete before changing to the hold state.

FREE RUN: The engine begins instruction execution from the current value of the PC. The program counter is

reset to zero when its upper-limit value is reached at the top of SRAM memory.

EXECUTE ONCE: Executes a single instruction and then changes to the hold state. The PC remains unaffected

unless the instruction is a branch command, in which case it changes if the branch is taken. If the instruction is a

ramp or wait, it will wait for this instruction to complete before changing to hold state.

Figure 21. LED_ENGINE_CONTROL1 Register

ch1_exec

ch2_exec

ch3_exec

RESERVED

R/W-0h

LP5569 Datasheet(PDF) 41 Page - Texas Instruments

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