1
2
14
15
SIN
SCLK
LAT
FC4
Bit 15
FC4
Bit 14
FC4
Bit 11
FC4
Bit 10
FC4
Bit 1
FC4
Bit 9
FC4
Bit 0
1
2
5
6
16
15
7
FC4
Other FCx
(x = 1, 2, 3)
FCx Data
Write FC4 Register:
Old FC4 Data
New FC4 Data
WRTFC4
(11 SCLK rising edges)
WRTFC_EN
(15 SCLK rising edges)
1
2
14
15
SIN
SCLK
LAT
FC3
Bit 15
FC3
Bit 14
FC3
Bit 9
FC3
Bit 8
FC3
Bit 1
FC3
Bit 7
FC3
Bit 0
1
2
7
8
16
15
9
FC3
Other FCx
(x = 1, 2, 4)
FCx Data
Write FC3 Register:
Old FC3 Data
New FC3 Data
WRTFC3
(9 SCLK rising edges)
WRTFC_EN
(15 SCLK rising edges)
1
2
14
15
SIN
SCLK
LAT
FC2
Bit 15
FC2
Bit 14
FC2
Bit 7
FC2
Bit 6
FC2
Bit 1
FC2
Bit 5
FC2
Bit 0
1
2
9
10
16
15
11
FC2
FCx Data
Old FC2 Data
New FC2 Data
Write FC2 Register:
Other FCx
(x = 1, 3, 4)
WRTFC2
(7 SCLK rising edges)
WRTFC_EN
(15 SCLK rising edges)
Function-Control Commands
17
SLVUBF4A – February 2018 – Revised June 2019
Copyright © 2018–2019, Texas Instruments Incorporated
Function Control
TI Information — Selective Disclosure
Figure 2-7. WRTFC_EN Command and WRTFC2 Command
Figure 2-8. WRTFC_EN Command and WRTFC3 Command
Figure 2-9. WRTFC_EN Command and WRTFC4 Command
2.2.2 Read Function-Control Register
The TLC694x device also provides the method to read back the function-control data from internal
registers. Similar to function-control data-write operation, the TLC694x device uses the number of SCLK
rising edges when LAT is HIGH to distinguish the function-control data-read command.
describes the read function-control data commands.
Once any of the function-control data-read commands is received, the 16-bit data in the corresponding
function-control register are copied to the common shift register at the falling edge of the LAT signal. Then
the data loaded in the common shift register can be read out from SOUT, synchronized with SCLK rising
edge.
to
show the timing diagrams of function-control data-read commands.
