FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Table 20. SPI Command Message Set and Default State
Command
Control Address Bits
Command Bits
hex
2
15
0
14
0
13
1
12
0
11
10
9
8
7
6
5
4
3
2
1
0
LSD Fault Command
<10X>
X
<1> <1> <1> <1> <1> <1> <1> <1>
OUT3 OUT2 OUT1 OUT0 OUT3 OUT2 OUT1 OUT0
ON
LSD Flt Operation
shutdn,Tlim,Timer
ON
ON
ON OFF OFF OFF OFF
Open Open Open Open Open Open Open Open
Load Load Load Load Load Load Load Load
Enabl Enabl Enabl Enabl Enabl Enabl Enabl Enabl
Retry on timer
and No Tlim
Driver ON/OFF Command
0 = OFF, 1 = ON
3
4
0
0
0
1
1
0
1
0
X
X
X
X
<0000>
GPGD
OFF
<0000>
OUTx Driver
OFF
(ignored in Ignition Mode)
Spark Command
<100>
<0> <0> <0> <0> <0>
Max Over Gain Soft Open
Dwell lap
En Dwell Gain Dn En Clmp
Disab Disab = 1 Disab Disab =100µs
<11>
Open
<01>
End Spark
Max Dwell Timer
MaxDwell
Default=32ms
Sel Shut 2ed Secondary Threshold
OSFLT
VPWR
+5.5V
(In Ignition Mode
Only)
End Spark Filter
DAC Command
5
6
0
0
1
1
0
1
1
0
X
X
X
X
X
X
X
X
X
X
<01>
End Spark
Thresh
4.0 µs
<1000>
<100>
<01010>
MAXI DAC Threshold
MAXI=14A
NOMI DAC Threshold
NOMI=5.5A
Overlap Setting
Overlap 50%
GPGD Short Threshold
Voltage Command
7
8
9
A
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
<011>
<011>
<011>
<011>
Short to Batt VFB3 Short to Batt VFB2 Short to Batt VFB1 Short to Batt VFB0
Vth = 2.0V
Vth = 2.0V
Vth = 2.0V
Vth = 2.0V
GPGD Short Duration
Timer Command
<011>
Short to Batt tFB3
Timer = 240µs
<011>
<011>
<011>
Short to Batt tFB2 Short to Batt tFB1 Short to Batt tFB0
Timer = 240µs
Timer = 240µs
Timer = 240µs
GPGD Fault Operation
Select Command
<1111>
Retry/Shutdown Bit
Retry on Fault
X
X
X
X
<0000>
Shutdown Drivers on MAXI
Disabled
PWM0 to PWM3 Freq &
DC Command
<00>
PWMx
address
PWM0
<000>
<0000000>
PWM Duty Cycle
0% Duty Cycle
PWM Frequency
10Hz
INVALID COMMAND
INVALID COMMAND
INVALID COMMAND
B
C
D
E
1
1
1
1
0
0
1
1
1
1
0
1
1
1
1
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Clock Calibration
Command
INVALID COMMAND
F
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
33810
Analog Integrated Circuit Device Data
Freescale Semiconductor
28
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