aduc7030 Analog Devices, Inc., aduc7030 Datasheet - Page 129

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

Preliminary Technical Data
STI DATA1 Register:
Name:
Address:
Default
Value:
Access:
Function:
STI Control Register:
Name:
Address:
Default Value:
Access:
Function:
Note:
Table 85. STICON MMR Bit Descriptions
Bit
16-
9
8-5
4-2
1
0
Description
Reserved
These bits are reserved for future use and should be written as ‘0’ by user code
State bits, read only
If the interface is in the middle of a transmission, these bits will not be 0
Number of Bytes to Transmit
These bits select the number of bytes that will be transmitted. User code must subsequently write the bytes to be transmitted into
the STIDAT0,1 and 2 MMRs
0, 0, 0
0, 0, 1
0, 1, 0
0, 1, 1
1, 0, 0
1, 0, 1
Reset Serial Test Interface
This bit is set to a 1 to reset the Serial Test Interface, a subsequent read of STICON will return all 0’s
This bit is set to a 0 by user code during normal Serial Test Interface operation, by power-on default
Serial Test Interface Enable
This bit is set to a 1 by user code to enable the Serial Test Interface
This bit is set to 0 by user code to disable the Serial Test Interface
STIDAT1
0xFFFF0890
0x0000
Read/Write
The STIDAT1 MMR is a 16-bit register which is
used to hold the third and fourth data bytes that
will be transmitted on the STI pin once the STI
port is enabled. The third byte to be transmitted
will occupy bits0-7 and the fourth byte will occupy
bits8-15.
STICON
0xFFFF0884
0x0000
Read/Write Access, write protected by 2 key registers (STIKEY0 and STIKEY1). A write access to STICON is only
completed correctly if the following triple write sequence is followed
The STI Control MMR is an 16-bit register that configures the mode of operation of the Serial Test Interface.
GPIO_13 must be configured for STI operation in GP2CON for STI communications.
1-byte Transmission
2-byte Transmission
3-byte Transmission
4-byte Transmission
5-byte Transmission
6-byte Transmission
1.
2.
3.
STIKEY0 MMR is written with 0x7
STICON is written
The sequence is completed by writing 0xB9 to STIKEY1
Rev. PrE | Page 129 of 150
STI DATA2 Register:
Name:
Address:
Default
Value:
Access:
Function:
STIDAT1
0xFFFF0894
0x0000
Read/Write
The STIDAT2 MMR is a 16-bit register which is
used to hold the fifth and sixth data bytes that will
be transmitted on the STI pin once the STI port is
enabled. The fifth byte to be transmitted will
occupy bits0-7 and the sixth byte will occupy
bits8-15.
ADuC7030/ADuC7033