JAJSDH7B June 2017 – May 2019 TUSB546A-DCI
PRODUCTION DATA.
For further programmability, the TUSB546A-DCI can be controlled using I2C. The SCL and SDA pins are used for I2C clock and I2C data respectively.
DPEQ0/A1
PIN LEVEL |
SSEQ0/A0
PIN LEVEL |
Bit 7 (MSB) | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0 (W/R) |
---|---|---|---|---|---|---|---|---|---|
0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0/1 |
0 | R | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0/1 |
0 | F | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0/1 |
0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0/1 |
R | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0/1 |
R | R | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0/1 |
R | F | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0/1 |
R | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0/1 |
F | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0/1 |
F | R | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0/1 |
F | F | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0/1 |
F | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0/1 |
1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0/1 |
1 | R | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0/1 |
1 | F | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0/1 |
1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0/1 |
The following procedure should be followed to write to TUSB546A-DCI I2C registers:
The following procedure should be followed to read the TUSB546A-DCI I2C registers:
The following procedure should be followed for setting a starting sub-address for I2C reads:
NOTE
If no sub-addressing is included for the read procedure, and reads start at register offset 00h and continue byte by byte through the registers until the I2C master terminates the read operation. If a I2C address write occurred prior to the read, then the reads start at the sub-address specified by the address write.
ACCESS TAG | NAME | MEANING |
---|---|---|
R | Read | The field may be read by software |
W | Write | The field may be written by software |
S | Set | The field may be set by a write of one. Writes of zeros to the field have no effect. |
C | Clear | The field may be cleared by a write of one. Write of zero to the field have no effect. |
U | Update | Hardware may autonomously update this field. |
NA | No Access | Not accessible or not applicable |