prel

imin

ary

prel

imin

ary

iC-HT

DUAL CW LASER DIODE DRIVER

Rev A1, Page 41/42

General configuration registers

RDCO

Addr. 0x1B; bit 5:0

R/W 0x02

0x00

No current

. . .

0x3F

140 µA Typ (see spec point D01)

Table 115: DCO current control

MERGE

Addr. 0x1B; bit 6

R/W 0

0

Channel 1 and 2 operate independently

1

Power transistor from channel 2 usable in parallel

with channel 1, regulation made by channel 1.

Table 116: Channel combination

MODE(1:0)

Addr. 0x1C; bit 1:0

R/W 01

00

Not allowed, signaled as memory error

01

Chip set in operation mode

(apply configuration, latch transparent)

10

Chip set in configuration mode

(hold previous configuration)

11

Not allowed, signaled as memory error

Table 117: Configuration and operation mode

MOSCERR

Addr. 0x1D; bit 0

R/W 0

0

Oscillator error (watchdog) will be signaled at

NCHK

1

Oscillator error (watchdog) will not be signaled at

NCHK

Table 118: Oscillator watchdog error mask

MMONC

Addr. 0x1D; bit 1

R/W 1

0

MONC1 and MONC2 event

will be signaled at NCHK

1

MONC1 and MONC2 event

will not be signaled at NCHK

Table 119: Monitor channel 1 and 2 event mask

MLDKSAT1

Addr. 0x1D; bit 2

R/W 1

0

LDKSAT1 event will be signaled at NCHK

1

LDKSAT1 event will not be signaled at NCHK

Table 120: LDK saturation error mask channel 1

MLDKSAT2

Addr. 0x1D; bit 3

R/W 1

0

LDKSAT2 event will be signaled at NCHK

1

LDKSAT2 event will not be signaled at NCHK

Table 121: LDK saturation error mask channel 2

SOVT

Addr. 0x1D; bit 4

R/W 0

0

No overtemperature event is simulated.

1

Overtemperature event simulated.

Table 122: Simulate overtemperature

SOVC1

Addr. 0x1D; bit 5

R/W 0

0

No Overcurrent event at channel 1 is simulated.

1

Overcurrent event at channel 1 simulated.

Table 123: Simulate overcurrent channel 1

SOVC2

Addr. 0x1D; bit 6

R/W 0

0

No overcurrent event at channel 2 is simulated.

1

Overcurrent event at channel 2 simulated.

Table 124: Simulate overcurrent channel 2

SOSCERR

Addr. 0x1D; bit 7

R/W 0

0

No oscillator error simulated.

1

Oscillator error simulated (watchdog timeout).

Table 125: Simulate oscillator error

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