908E626 Datasheet, PDF (21/38 Pages) Freescale Semiconductor, Inc – Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication

FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Table 3. List of Registers
Addr
$01
$02
$03
$04
$05
$06
$07
$08
$09
$0a
$0b
$0c
Register Name R/W
7
H-Bridge Output
(HBOUT)
R
HB4_H
W
H-Bridge Control
(HBCTL)
R
OFC_EN
W
System Control
(SYSCTL)
R
PSON
W
Interrupt Mask
(IMR)
R
W
0
Interrupt Flag
(IFR)
R
W
0
Reset Mask
(RMR)
R
TTEST
W
Analog Multiplexer
R
0
Configuration (ADMUX) _W
Reserved
R
0
W
Reserved
R
0
W
AWD Control
(AWDCTL)
R
0
W
Power Output
R
0
(POUT)
W
System Status
(SYSSTAT)
R
W
0
6
HB4_L
CSA
SRS1
5
HB3_H
0
SRS0
Bit
4
3
HB3_L HB2_H
0
0
0
0
0
LINIE
HTIE
LVIE
0
LINF
HTF
LVF
0
0
0
0
0
0
0
SS3
0
0
0
0
0
0
0
0
0
0
AWDRE
0
AWDRST
0
0
0
0
LINCL
LVF
HVDD_OCF 0
2
HB2_L
1
HB1_H
0
HB1_L
CLS2
0
HVIE
HVF
0
CLS1
0
OCIE
OCF
HVRE
CLS0
0
0
0
HTRE
SS2
SS1
SS0
0
0
0
0
0
0
0
AWDF
AWDR
0
HVDDON
0
HVF
HTF
HB_OCF
Slave Status Byte
Contains the contents of the System Status Register ($0c)
independent of whether it is a write or read operation or which
register was selected.
Slave Data Byte
Contains the contents of selected register. During a write
operation it includes the register content prior to a write
operation.
SPI Register Overview
Table 3 summarizes the SPI Register addresses and the
bit names of each register.
ANALOG DIE I / OS
LIN Physical Layer
The LIN bus terminal provides a physical layer for single-
wire communication in automotive applications. The LIN
physical layer is designed to meet the LIN physical layer
specification.
The LIN driver is a low-side MOSFET with internal current
limitation and thermal shutdown. An internal pullup resistor
with a serial diode structure is integrated, so no external
pullup components are required for the application in a slave
node. The fall time from dominant to recessive and the rise
time from recessive to dominant is controlled. The symmetry
between both slew rate controls is guaranteed.
The LIN terminal offers high susceptibility immunity level
from external disturbance, guaranteeing communication
during external disturbance.
The LIN transmitter circuitry is enabled by setting the
PSON bit in the System Control Register (SYSCTL). If the
transmitter works in the current limitation region, the LINCL
bit in the System Status Register (SYSSTAT) is set. Due to
excessive power dissipation in the transmitter, software is
advised to monitor this bit and turn the transmitter off
immediately.
Analog Integrated Circuit Device Data
Freescale Semiconductor
908E626
21