ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 231 -
Revision 2.4
SPICLK
MOSI
Slave Mode: CNTRL[SLVAE]=1, CNTRL[LSB]=0, CNTRL[Tx_NUM]=0x01, CNTRL[Tx_BIT_LEN]=0x08
MISO
Tx0[6]
Tx0[0]
Tx1[7]
Tx1[6]
LSB
Tx1[0]
MSB
Tx0[7]
Rx0[6]
Rx0[0]
Rx1[7]
Rx1[6]
LSB
Rx1[0]
MSB
Rx0[7]
CLKP=0
CLKP=1
SPI_SS
SS_LVL=1
SS_LVL=0
1. CNTRL[CLKP]=0, CNTRL[Tx_NEG]=1, CNTRL[Rx_NEG]=0 or
2. CNTRL[CLKP]=1, CNTRL[Tx_NEG]=0, CNTRL[Rx_NEG]=1
Figure 5-50 SPI Timing in Slave Mode
SPICLK
MOSI
Slave Mode: CNTRL[SLVAE]=1, CNTRL[LSB]=1, CNTRL[Tx_NUM]=0x01, CNTRL[Tx_BIT_LEN]=0x08
MISO
Tx0[1]
Tx0[7]
Tx1[0]
Tx1[6]
MSB
Tx1[7]
LSB
Tx0[0]
CLKP=0
CLKP=1
SPI_SS
SS_LVL=1
SS_LVL=0
1. CNTRL[CLKP]=0, CNTRL[Tx_NEG]=0, CNTRL[Rx_NEG]=1 or
2. CNTRL[CLKP]=1, CNTRL[Tx_NEG]=1, CNTRL[Rx_NEG]=0
Rx0[1]
Rx0[7]
Rx1[0]
Rx1[6]
MSB
Rx1[7]
LSB
Rx0[0]
Figure 5-51 SPI Timing in Slave Mode (Alternate Phase of SPICLK)