L9959 Datasheet, PDF (34/49 Pages) STMicroelectronics – Single and dual PMOS high-side H-bridge

SPI functional description
Table 25. Check byte
Bit
7
6
5
4
3
2
Name
Tristate Tristate
1
0
1
0
Bit
Name
Content
7:6
Tristate Tristate
6:1
Fix Content: 10101
0
TRANS_F Transfer-Failure Invalid instruction TRANS_F = 1
L9959
1
0
1
TRANS_F
5.3
Device register map
Command
RD_ID
RD_REV
RD_DIA1
RD_DIA2
RD_CONFIG
RD_STATCON
RD_SPECIAL
WR_DIA1
WR_DIA2
WR_CONFIG
WR_STATCON
WR_SPECIAL
All Other
Table 26. Command overview
INST<5:0>
Content
00_0100
Read Device ID
00_0110
01_0000
01_1000
Read Device Revision
Read Diagnostic Information Register 1
Read Diagnostic Information Register 2
00_1000
Read Configuration
00_1100
Read VDD Monitoring Status
00_1110
11_0000
Read information from SPECIAL
Write to Diagnostic Information Register 1
11_1000
Write to Diagnostic Information Register 2
10_1000
Write Configuration
10_1100
10_1110
-
Write VDD Monitoring Status
Write information to SPECIAL
Invalid Command: TRANS_F: 1
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