Setup Register 4 (Sr4) (Read/Write); Setup Register 5 (Sr5) (Read/Write) - Texas Instruments OMAP5910 Reference Manual

MicroWire Interface
Table 8.

Setup Register 4 (SR4) (Read/Write)

Bits Field
0 CLK_IN
Table 9.

Setup Register 5 (SR5) (Read/Write)

Bits Field
3 CS_TOGGLE_TX_EN
2 AUTO_TX_EN
16
MicroWire Interface
This register sets up the serial-clock polarity.
Value Description
0 The serial clock is not inverted
1 The serial clock is inverted
Note:
Content of this register must not be changed when a read or write process is running.
Value Description
CS_TOGGLE_TX_EN is possible only in the
autotransmit mode.
When
CS_TOGGLE_TX_EN inactive, the CS does not
go to its active level automatically. Control the CS
with the CS_CMD bit of the control and status
register (CSR) in the software.
0 The CS_toggle transmit mode is disabled.
1 The CS_toggle transmit mode is enabled.
In the autotransmit mode, the CS_CMD and
START bits of the control and status register
(CSR) are not used. A hardware state machine
detects a TXD write and automatically sets the
programmed CS to its active value, then starts
the transmission.
The CS_CMD and the START bits in the control
and status register (CSR) are not updated during
the autotransmit mode.
0 The autotransmit mode is disabled.
1 The autotransmit mode is enabled.
in the autotransmit
Reset
Value
0
Reset
Value
0
mode with
0
SPRU686