HAL1820, HAL24xy, HAL28xy, HAL36xy, HAL38xy
APPLICATION NOTE
Application Board HAL-APB V1.x
44
Oct. 8, 2012; APN000055_003EN
Micronas
11.2.
Command Structure of Protocol for communication via
OUT-Pin
command structure
COM: command bit
ADR: address bit
parity: command and address check bit
SYNC: start bit (always 0)
DAT:
data bit
CRC: CRC bit
dummy: dummy bit (always 0)
ACK: acknowledge
Communication via Out-Pin / Bidirectional on Out-Pin
: digital Output
Mode Switch
sensor output
V
SUP
OUT-Pin
AC
K
WRITE
READ
command
OUT-Pin
command
CO
M
2
CO
M1
CO
M0
A
DR3
ADR2
A
DR1
ADR0
SYNC
pa
rit
y
DA
T1
5
DA
T1
4
DA
T1
3
DA
T1
2
D
AT
11
D
AT
10
D
AT
9
D
AT
8
DA
T7
D
AT
6
DA
T5
D
AT
4
DA
T3
DA
T2
DA
T1
D
AT
0
CR
C3
CRC2
CRC1
dum
my 0
ADR4
CR
C0
C
OM2
C
OM
1
C
OM
0
ADR3ADR2
ADR1
ADR0
SYNC
pa
rit
y
ADR4
du
m
m
y 0
DA
T15
DA
T1
4
DA
T13
D
AT1
2
DA
T1
1
D
AT1
0
DA
T9
DA
T8
DA
T7
DA
T6
DA
T5
DA
T4
D
AT3
DA
T2
D
AT1
D
AT0
CRC3
CRC2
C
RC1
CRC0
t
s_bifsp
t
s_bifsp
t
s_bresp
t
s_bresp
t
startup
t
MS
t
switch
OUT-Pin
