NCV7707, NCV7707B
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28
CONTROL_1 Register
Address: 01h
Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Access type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW −
Bit name HS7.1 HS7.0 HS8.1 HS8.0 HS9 HS10 HS11
LS
ECFB
DAC5 DAC4 DAC3 DAC2 DAC1 DAC0 ECEN 0
Reset value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
HS Outputs
OUT7,8
Control
HSx.1 HSx.0 Description Remark
0 0 default OUTx High impedance
If a driver is enabled by the control register AND the
corresponding PWM enable bit is set in CONTROL_3
register, the output is only activated if the
corresponding PWM input signal (PWM pin or internal
PWM signal) is high.
0 1
Output enabled, low
current mode (LED
mode)
1 0
Output enabled, high
current mode (bulb
mode)
1 1 OUTx High impedance
HS Outputs
OUT9−11
Control
HSx Description Remark
0 default OUTx High impedance
If a driver is enabled by the control register AND the
corresponding PWM enable bit is set in CONTROL_3
register, the output is only activated if the
corresponding PWM input signal (PWM pin or internal
PWM signal) is high.
1 OUTx enabled
ECFB
Pull−down
Output Control
LS ECFB Description Remark
0 default
Pull−down transistor
disabled (high
impedance)
The ECFB−pull−down transistor can only be activated
if the DAC output voltage is set to 0 V (DAC[5:0]=0). If
the PWM enable bit CONTROL_2.ECFB_PWM1 is
set, the output will only be activated when the PWM1
signal input is high.
1
Pull−down transistor
enabled
Electrochrom.
Mirror
Reference
Voltage
DAC[5:0] Description Remark
0 default
Reference voltage for
ECON/ECFB
differential amplifier
If bit CONTROL_2.FSR=0, the output voltage is
clamped to 1.2 V.
n
Electrochrom.
Mirror Enable
ECEN Description Remark
0 default
Electrochromic mirror
controller disabled
By enabling the electrochromic mirror controller
(ECEN=1), the output driver for the external pass
transistor (ECON) is enabled. In addition, OUT10 is
activated, regardless of the setting of
CONTROL_1.HS10.
1
Electrochromic mirror
controller enabled
