L4_CLK
RFBI_A0(D/C)
RFBI_CSi
RFBI_RD
DATA0
DATA1
CSOnTime
REOnTime
RECycleTime
CSOffTime
CSOnTime
REOffTime
REOffTime
AccessTime
RFBI_DA[15:0]
(with i = 0, 1)
dss-013
L4_CLK
RFBI_RD
RFBI_WR
READ0
WRITE0
READ1
CSOffTime
CSOnTime
CSOnTime
CSOffTime
CSOffTime
CSOnTime
RECycleTime
WECycleTime
CSPulseWidth
CSPulseWidth
RFBI_A0(D/C)
RFBI_CSi
RFBI_DA[15:0]
(with i = 0, 1)
dss-014
Public Version
www.ti.com
Display Subsystem Environment
Figure 7-15. Display Data Read
Figure 7-16. Read to Write and Write to Read
•
Timing diagrams in bypass mode
through
show timing diagrams of synchronization signals and pixel clock in
bypass mode for both passive matrix and active matrix panels. The display controller directly drives
these signals, which are related to the programmable fields described in
Table 7-7. Programmable Fields in Bypass Mode
Name
Register
Description
PPL
DSS.
[10:0] PPL bit field value + 1
Pixels per line (PPL)
LPP
DSS.
[26:16] LPP bit field value + 1
Lines per panel
HBP
DSS.
[31:20] HBP bit field value + 1
Horizontal back porch
HFP
DSS.
[19:8] HFP bit field value + 1
Horizontal front porch
HSW
DSS.
[7:0] HSW bit field value + 1
Horizontal synchronization pulse width
VBP
DSS.
[31:20] VBP bit field value
Vertical back porch
1579
SWPU177N – December 2009 – Revised November 2010
Display Subsystem
Copyright © 2009–2010, Texas Instruments Incorporated