DRV3201-Q1_16 Datasheet, PDF (31/60 Pages) Texas Instruments – DRV3201-Q1 3 Phase Motor Driver-IC for Automotive Safety Applications

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DRV3201-Q1
SLVSBD6D – MAY 2012 – REVISED AUGUST 2015
All unused bits are set to zero.
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NCS
SCLK
SDI
R7
R6
R5
R4
R3
R2
R1
R0
R7
R6
R5
R4
R3
R2
R1
R0 X
SDO
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0 X
8-Bit SPI Transfer
L16-Bit SPI FrameL
8-Bit SPI Transfer
NOTE: SPI Master (MCU) and SPI Slave (DRV3201) sample received data on the falling SCLK edge, and transmit on rising SCLK edge
NCS
SDI
SDO
16-Bit SPI Frame Example: Write Access followed by Read Access
ADDR1, RW = 1 (WR)
1^st Transfer
Status Flags
WR DATA1
2^nd Transfer
Response to Transfer 1
ADDR2, RW = 0 (RD)
3^rd Transfer
Status Flags
Zero Vector
Response to Transfer 3
NCS
SDI
SDO
16-Bit SPI Frame Example: Read Access followed by Read Access
ADDR1, RW = 0 (RD)
1^st Transfer
Status Flags
Zero Vector
Response to Transfer 1
ADDR2, RW = 0 (RD)
3^rd Transfer
Status Flags
Zero Vector
Response to Transfer 3
NCS
SDI
SDO
16-Bit SPI Frame Example: Write Access followed by Write Access
ADDR1, RW = 1 (WR)
1^st Transfer
Status Flags
WR DATA1
2^nd Transfer
Response to Transfer 1
ADDR2, RW = 1 (WR)
3^rd Transfer
Status Flags
WR DATA2
4^th Transfer
Response to Transfer 3
NCS
SDI
SDO
16-Bit SPI Frame Example: Read Access followed by Write Access
ADDR1, RW = 0 (RD)
1^st Transfer
Status Flags
ADDR2, RW = 1 (WR)
2^nd Transfer
Response to Transfer 1
WR DATA2
3^rd Transfer
Response to Transfer 2
Zero Vector
Status Flags
NCS
SDI
SDO
16-Bit SPI Frame Example: Read Access followed by Read Access followed by Write Access
ADDR1, RW = 0 (RD)
1^st Transfer
Status Flags
ADDR2, RW = 0 (RD)
2^nd Transfer
Response to Transfer 1
ADDR3, RW = 1 (WR)
3^rd Transfer
WR DATA3
4^th Transfer
Response to Transfer 2 Response to Transfer 3
NCS
16-Bit SPI Frame Example: Read Access followed by Read Access followed by Read Access
SDI
ADDR1, RW = 0 (RD)
1^st Transfer
ADDR2, RW = 0 (RD)
2^nd Transfer
ADDR3, RW = 0 (RD)
3^rd Transfer
Zero Vector
SDO
Status Flags
Response to Transfer 1
Response to Transfer 2 Response to Transfer 3
B82442A1683K Inductor Used
Figure 12. SPI Frame Examples
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