DSM=value1, HPCDIR=value1, WLE=value1, TRM=value1, SDIR=value1, DOCFG=value1, PDL=value1
Shift Control Register
| SDIR | Shift Direction 0 (value1): Shift LSB first. The first data bit of a data word is located at bit position 0. 1 (value2): Shift MSB first. The first data bit of a data word is located at the bit position given by bit field SCTR.WLE. |
| PDL | Passive Data Level 0 (value1): The passive data level is 0. 1 (value2): The passive data level is 1. |
| DSM | Data Shift Mode 0 (value1): Receive and transmit data is shifted in and out one bit at a time through DX0 and DOUT0. 2 (value3): Receive and transmit data is shifted in and out two bits at a time through two input stages (DX0 and DX3) and DOUT[1:0] respectively. 3 (value4): Receive and transmit data is shifted in and out four bits at a time through four input stages (DX0, DX[5:3]) and DOUT[3:0] respectively. |
| HPCDIR | Port Control Direction 0 (value1): The pin(s) with hardware pin control enabled are selected to be in input mode. 1 (value2): The pin(s) with hardware pin control enabled are selected to be in output mode. |
| DOCFG | Data Output Configuration 0 (value1): DOUTx = shift data value 1 (value2): DOUTx = inverted shift data value |
| TRM | Transmission Mode 0 (value1): The shift control signal is considered as inactive and data frame transfers are not possible. 1 (value2): The shift control signal is considered active if it is at 1-level. This is the setting to be programmed to allow data transfers. 2 (value3): The shift control signal is considered active if it is at 0-level. It is recommended to avoid this setting and to use the inversion in the DX2 stage in case of a low-active signal. 3 (value4): The shift control signal is considered active without referring to the actual signal level. Data frame transfer is possible after each edge of the signal. |
| FLE | Frame Length |
| WLE | Word Length 0 (value1): The data word contains 1 data bit located at bit position 0. 1 (value2): The data word contains 2 data bits located at bit positions [1:0]. 14 (value3): The data word contains 15 data bits located at bit positions [14:0]. 15 (value4): The data word contains 16 data bits located at bit positions [15:0]. |