DS3994Z+W Maxim Integrated Products, DS3994Z+W Datasheet - Page 19

• Manufacturer Part Number: DS3994Z+W
• Description: Display Drivers 4-Ch Cold-Cathode Fl uorescent Controller
• Manufacturer: Maxim Integrated Products

Specifications of DS3994Z+W

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The DS3994’s register map is shown in Table 4.
Detailed register and bit descriptions follow in the sub-
sequent tables.
Table 4. Register Map
* This is the factory-programmed default stored in EEPROM.
ADDRESS
FD-FFh
BYTE
FAh
FBh
FCh
F0h
F1h
F2h
F3h
F4h
F5h
F6h
F7h
F8h
F9h
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Memory
NAME
BYTE
BDS1
BDS2
BDS3
BDS4
User
CR1
CR2
CR3
Detailed Register Descriptions
DEFAULT*
FACTORY
21h
43h
65h
77h
20h
08h
00h
00h
00h
00h
00h
00h
00h
00h
Burst dimming stagger for channel 1.
Burst dimming stagger for channel 2.
Burst dimming stagger for channel 3.
Burst dimming stagger for channel 4.
____________________________________________________________________
BIT 7
BVRS
LOFS
DPD
EE
—
—
Fluorescent Lamp Controller
BIT 6
FRS
LD1
IGO
EE
—
—
—
—
—
—
4-Channel Cold-Cathode
BIT 5
ARD
LD0
SB2
—
—
EE
RGSO
BIT 4
SB1
—
—
EE
0
BIT 3
DPSS
SB0
EE
—
—
1
POSCR1
LST1
BIT 2
LFSS
EE
—
—
—
—
—
—
POSCR0
POSCS
BIT 1
LST0
EE
—
—
UMWP
SLOPE
BIT 0
LOC
EE
—
—
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