Figure 14-4. Texas Instruments Synchronous Serial Frame Format (Single Transfer); Figure 14-5. Texas Instruments Synchronous Serial Frame Format (Continuous Transfers) - Sharp LH79524 User Manual

LH79524/LH79525 User's Guide
14.1.3 Texas Instruments Frame Format
For the Texas Instruments DSP-compatible synchronous serial interface frame format, the
SSPFRM pin is pulsed for one serial clock period stating at its rising edge, prior to each
frame's transmission. For this frame format, the SSP outputs data on the rising edge of the
clock and latches input data on the rising edge of the clock.
Figure 14-4 shows the Texas Instruments DSP format for a single transfer. Figure 14-5
shows the same format for continuous transfers.

Figure 14-4. Texas Instruments Synchronous Serial Frame Format (Single Transfer)

SSPCLK
SSPFRM
SSPTX/
SSPRX
SSPCLK
SSPFRM
SSPTX/
SSPRX
Figure 14-5. Texas Instruments Synchronous Serial Frame Format
MSB LSB
4 to 16 BITS
MSB
4 to 16 BITS
(Continuous Transfers)
Version 1.0
Synchronous Serial Port
LH79525-76
LSB
LH79525-77
14-5