APPLICATION NOTE
HAL1820, HAL24xy, HAL28xy, HAL36xy, HAL38xy
Application Board HAL-APB V1.x
Micronas
Oct. 8, 2012; APN000055_003EN
53
12.4.
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
OUT-Pin
AC
K
WRITE
READ
command
OUT-Pin
Communication via Out-Pin / Bidirectional on Out-Pin
: Analog or digital output
command
COM
2
CO
M
1
C
OM0 ADR3ADR
2
ADR1
A
DR
0
SY
NC
pa
rit
y
D
AT
15
D
AT
14
D
AT
13
D
AT
12
DA
T1
1
DA
T1
0
D
AT9
D
AT
8
DA
T7
D
AT
6
DA
T5
D
AT
4
D
AT
3
DA
T2
DA
T1
D
AT
0
CRC3
CRC2
CRC1
du
mm
y 0
ADR4
CRC0
CO
M
2
COM
1
COM
0
ADR3ADR2
ADR1
ADR0
SY
NC
pa
rity
ADR4
du
mm
y 0
DA
T1
5
D
AT1
4
D
AT
13
DA
T1
2
D
AT
11
DA
T1
0
D
AT
9
D
AT8
D
AT
7
D
AT
6
D
AT5
D
AT4
DA
T3
D
AT
2
DA
T1
DA
T0
C
RC3
C
RC2
C
RC1
C
RC0
AC
K
C
Detail B
OUT-Pin
Detail C
t
overc
t
overc
t
switch
C
t
prog
t
ACK
t
ACK
SYN
C
CRC0
t
space
t
space
Analog or digital output
OUT-Pin
B
