C164CI_02 Datasheet, PDF (254/484 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller

C164CI/C164SI
Derivatives
High-Speed Synchronous Serial Interface
12.3
Continuous Transfers
When the transmit interrupt request flag is set, it indicates that the transmit buffer SSCTB
is empty and ready to be loaded with the next transmit data. If SSCTB has been reloaded
by the time the current transmission is finished, the data is immediately transferred to the
shift register and the next transmission will start without any additional delay. On the data
line, there is no gap between the two successive frames. For example, two byte transfers
would look the same as one word transfer. This feature can be used to interface with
devices which can operate with or require more than 16 data bits per transfer. It is only
a matter of software, how long a total data frame length can be. This option can also be
used to interface to byte-wide and word-wide devices on the same serial bus, for
example.
Note: Of course, total frame length can only occur in multiples of the selected basic data
width as disabling/enabling of the SSC would be required to reprogram the basic
data width on-the-fly.
User’s Manual
12-11
V3.1, 2002-02