LM3S5G31 Datasheet, PDF (502/1223 Pages) Texas Instruments – Stellaris LM3S5G31 Microcontroller

External Peripheral Interface (EPI)
Figure 10-18. FRAME Signal Operation, FRM50=0 and FRMCNT=2
Clock
(EPI0S31)
WR
(EPI0S28)
RD
(EPI0S29)
Frame
(EPI0S30)
When FRM50 is set, the FRAME signal transitions on the rising edge of either the WR or RD strobes.
When FRMCNT=0, the FRAME signal transitions on the rising edge of WR or RD for every access,
see Figure 10-19 on page 502.
Figure 10-19. FRAME Signal Operation, FRM50=1 and FRMCNT=0
Clock (EPI0S31)
WR (EPI0S28)
RD (EPI0S29)
Frame
(EPI0S30)
When FRMCNT=1, the FRAME signal transitions on the rising edge of the WR or RD strobes for
every other access, see Figure 10-20 on page 502.
Figure 10-20. FRAME Signal Operation, FRM50=1 and FRMCNT=1
Clock
(EPI0S31)
WR
(EPI0S28)
RD
(EPI0S29)
Frame
(EPI0S30)
When FRMCNT=2, the FRAME signal transitions the rising edge of the WR or RD strobes for every
third access, and so on for every value of FRMCNT, see Figure 10-21 on page 502.
Figure 10-21. FRAME Signal Operation, FRM50=1 and FRMCNT=2
CLOCK
(EPI0S31)
WR
(EPI0S28)
RD
(EPI0S29)
FRAME
(EPI0S30)
502
July 03, 2014
Texas Instruments-Production Data