Si3233
Register 0. SPI Mode Select
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name SPIDC SPIM
PNI[1:0]
RNI[3:0]
Type R/W
R/W
R
R
Reset settings = 00xx_xxxx
Bit
Name
Function
7
SPIDC SPI Daisy Chain Mode Enable.
0 = Disable SPI daisy chain mode.
1 = Enable SPI daisy chain mode.
6
SPIM
SPI Mode.
0 = Causes SDO to tri-state on rising edge of SCLK of LSB.
1 = Normal operation; SDO tri-states on rising edge of CS.
5:4 PNI[1:0] Part Number Identification.
00 = Si3233
01 = Reserved
10 = Reserved
11 = Si3233M
3:0 RNI[3:0] Revision Number Identification.
0001 = Revision A, 0010 = Revision B, 0011 = Revision C, etc.
42
Preliminary Rev. 0.5