aduc7030 Analog Devices, Inc., aduc7030 Datasheet - Page 136

• Manufacturer Part Number: aduc7030
• Description: Integrated Precision Battery Sensor For Automotive
• Manufacturer: Analog Devices, Inc.

ADuC7030/ADuC7033
LIN Hardware Synchronization Control Register 1:
Name:
Address:
Default Value:
Access:
Function:
Table 88. LHSCON1 MMR Bit Descriptions
Bit
31-
8
7-4
3-0
LIN Hardware Synchronization Timer0 Register:
Name:
Address:
Default Value:
Access:
Function:
Description
Reserved
These bits are reserved for future and should be written as 0 by user software.
LIN STOP Edge Count
These 4 bits are set by user code to the number of falling or rising edges on which to stop the internal LIN synchronization counter.
The stop value of this counter can be read by user code via LHSVAL0. The type of edge, either rising or falling, is configured by
LHSCON0[7]. The default value of these bits is 0x3 which configures the hardware to stop counting on the third falling edge. It should
be noted that the first falling edge is taken as the falling edge at the start of the LIN break pulse.
LIN START Edge Count
These 4 bits are set by user code to the number of falling edges after which the internal LIN synchronization timer will start counting.
The stop value of this counter can be read by user code via LHSVAL0. The default value of these bits is 0x2 which configures the
hardware to start counting on the second falling edge. It should be noted that the first falling edge is taken as the falling edge at the
start of the LIN break pulse.
Read/Write
Read Only
LHSCON1
0xFFFF078C
0x00000032
The LHS Control register is a 32-bit register that in conjunction with the LHSCON0 register is used to configure the
LIN mode of operation
LHSVAL0
0xFFFF0788
0x0000
The 16-bit read only LHSVAL0 register holds the value of the internal LIN synchronization timer. The LIN
synchronization timer is clocked from an internal 5MHz clock which is independent of Core clock and baud-rate
frequency. In LIN mode, the value read by user code from the LHSVAL0 register can be used calculate the master LIN
baud-rate. This calculation can then be used to configure the internal UART baud-rate to ensure correct LIN
communication via the UART from the ADuC7030/ADuC7033 slave to the LIN master node
Rev. PrE | Page 136 of 150
Preliminary Technical Data