ssl3250a NXP Semiconductors, ssl3250a Datasheet - Page 16

• Manufacturer Part Number: ssl3250a
• Description: Photo ?ash Dual Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 6.
Legend: * default register value
SSL3250A_2
Product data sheet
Address Register
00h
Current control
Description of registers
8.7.1 Addressing
8.7.2 Data
8.7.3 Register map
Each SSL3250A in an I
device. The address always has to be sent as the first byte after the start condition in the
I
There is one address byte required since 7-bit addresses are used. The last bit of the
address byte is the read/write-bit and should always be set according to the required
operation. This 7-bit I
create an 8-bit write address of 60h and a read address of 61h.
The second byte sent to the SSL3250A is the subaddress of a specific register.
After the subduers have been sent the data byte(s) are sent. The definition of the data
byte(s) is given in
subduers is automatically incremented to the next subduers.
A description of the data that can be programmed in the registers is given in the register
map in
2
Fig 15. I
C-bus protocol
Bit
7 to 3
2 to 0
Section
2
C slave address
Symbol
MAIN_LEVEL
IND_LEVEL
8.7.3.
Figure
Figure
2
C address is 0110000b (30h). The 7-bit address plus the R/W bit
Rev. 02 — 21 April 2009
2
15.
C-bus system is activated by sending a valid address to the
13. After each data byte an acknowledge is given and the
Access
R/W
R/W
MSB
0
1
1
Value
00000*
00001
00010
.....
01010
01011
01100
01101
.....
11110
11111
000
001
011
.....
111
*
0
0
Description
Off (default)
Torch mode, see
Torch mode, see
.....
Torch mode, see
Torch mode, see
Flash mode (armed), see
Flash mode (armed), see
.....
Flash mode (armed), see
Flash mode (armed), see
Off (default)
Indicator on, 2.5 mA
Indicator on, 5 mA
Indicator on, 17.5 mA
0
LSB
0
014aaa288
R
Photo flash dual LED driver
W
Section 8.3.3
Section 8.3.3
Section 8.3.3
Section 8.3.3
SSL3250A
© NXP B.V. 2009. All rights reserved.
Section 8.3.4
Section 8.3.4
Section 8.3.4
Section 8.3.4
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