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AS3661 Datasheet(PDF) 65 Page - ams AG

Part # AS3661
Description  Programmable 9-channel LED Dr iver
PDF  87 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3661 Datasheet(HTML) 65 Page - ams AG

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8.11 Instruction Set
AS3661 has three independent programmable execution engines. All the program execution engines have their own program memory block allocated by the user.
Note that in order to access program memory the operation mode needs to be load program, at least for one of the three program execution engines. Program
execution is clocked with 32 768Hz clock. This clock can be generated internally or external 32 kHz clock can be connected to CLK32K pin. Using external clock
enables synchronization of LED timing to the external clock signal.
Supported instruction set is listed in the tables below:
Table 71. LED Driver Instructions
LED Driver
Instructions
Compiler
Command
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
1. This opcode is used with numerical operands.
RMP
0
pre-
scale
step time
sign
# of increments
ramp
2
2. This opcode is used with variables.
RWV
1
0
0
0
0
1
0
0
0
0
pre-
scale
sign
step time
# of
increments
set_pwm
1
SPW
0
1
0
0
0
0
0
0
PWM value
set_pwm
2
SPV
1
0
0
0
0
1
0
0
0
1
1
0
0
0
PWM value
wait
WAIT
0
pre-
scale
time
0
0
0
0
0
0
0
0
0
Table 72. LED Mapping Instructions
LED Mapping
Instructions
Compiler
Command
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
MLS
1
0
0
1
1
1
1
0
0
SRAM address 0-95
mux_map_start
MMS
1
0
0
1
1
1
0
0
0
mux_ld_end
MLE
1
0
0
1
1
1
0
0
1
mux_sel
MSL
1
0
0
1
1
1
0
1
0
LED select
mux_clr
MCL
1
0
0
1
1
1
0
1
0
0
0
0
0
0
0
0
mux_map_next
MMN
1
0
0
1
1
1
0
1
1
0
0
0
0
0
0
0
mux_map_prev
MMP
1
0
0
1
1
1
0
1
1
1
0
0
0
0
0
0
mux_ld_next
MLN
1
0
0
1
1
1
0
1
1
0
0
0
0
0
0
1



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