APGRD004 Microchip Technology, APGRD004 Datasheet - Page 15

• Manufacturer Part Number: APGRD004
• Description: REF DESIGN MOD AUTO AMBNT LIGHT
• Manufacturer: Microchip Technology

Specifications of APGRD004

• Main Purpose: Lighting, RGB LED Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP2021, PIC12F615
• Primary Attributes: 4 Tiny Boards, Each Have: RGB LED, LIN Transceiver, Voltage Regulator, MCU
• Secondary Attributes: LIN Commands are Interpreted to Control 16,383 Colors and 1,023 Dimming Levels
• Silicon Manufacturer: Microchip
• Silicon Core Number: APGDT001
• Kit Contents: 4 Ambient Lighting Modules, Documentation
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS51714A-page 11
Interior Ambient Lighting Module with LIN Interface User’s Guide
REGISTER 3-2:
REGISTER 3-3:
REGISTER 3-4:
REGISTER 3-5:
bit 7
bit 6
bit 5
bit 4-0
Note 1:
bit 7-0
Note 1:
bit 7-0
Note 1:
bit 7-0
Note 1:
DIMDWN
bit 7
bit 7
bit 7
bit 7
x
The first data byte selects the overall intensity of the RGB LEDs, and also sets a
request to ramp up to the chosen intensity, or to ramp down from that intensity
level, to zero. The intensity value is scaled to 10 bits of resolution with an
increment of 16 bits. The intensity value can be in the range of 0 to 63.
The second data byte selects the level of red for the desired color mix. The
intensity value can be in the range of 0 to 255.
The third data byte selects the level of green for the desired color mix. The
intensity value can be in the range of 0 to 255.
The fourth data byte selects the level of blue for the desired color mix. The intensity
value can be in the range of 0 to 255.
DIMDWN: Dim Down to Zero From Intensity Selected by bits<4:0>
1 = Dim out
0 = No dim
RAMPUP: Ramp Up From Zero to Intensity Selected by bits<4:0>
1 = Ramp up
0 = No ramp
Reserved
INTENS<4:0>: Select Intensity
00000 (off) through 11111 (maximum intensity)
RED<7:0>
GREEN<7:0>
BLUE<7:0>
RAMPUP (Reserved)
bit 6
bit 6
bit 6
bit 6
x
FIRST DATA BYTE (CONTROL)
SECOND DATA BYTE (RED)
THIRD DATA BYTE (GREEN)
FOURTH DATA BYTE (BLUE)
bit 5
bit 5
bit 5
bit 5
0
Green Saturation
Blue Saturation
Red Saturation
bit 4
bit 4
bit 4
bit 4
0 to 0xFF
0 to 0xFF
0 to 0xFF
bit 3
bit 3
bit 3
bit 3
(1)
(1)
(1)
Select Intensity
(1)
0 to 0x1F
bit 2
bit 2
bit 2
bit 2
© 2008 Microchip Technology Inc.
bit 1
bit 1
bit 1
bit 1
bit 0
bit 0
bit 0
bit 0