Table 19-15, Lcd controller timing parameters -18 – Motorola MC68VZ328 User Manual
Page 334
19-18
MC68VZ328 User’s Manual
AC Electrical Characteristics
Figure 19-14. LCD Controller Timing Diagram (Self-Refresh Mode)
Table 19-15. LCD Controller Timing Parameters
Number
Characteristic
(3.0 ± 0.3) V
Unit
Minimum
Maximum
1
Line pulse to frame signal
(4 * pixclk) - 2
—
ns
2
Line pulse width
(4 * pixclk) - 2
—
ns
3
LCLK to data valid
-2
2
ns
4
Shift clock to line pulse
(2 * pixclk) - 2
(2 * pixclk) + 2
ns
Note:
The preceding data is measured by summing the polarity bits LFLM, LLP, and LCLK in the POLCF register.
The variable pixclk = LCD_CLK / (pcd + 1).
The self-refresh mode timing between LFRM, LSCLK, LD, and LLP are the same as in normal mode.
The self-refresh mode is entered and exited on the positive edge of LFRM.
In self-refresh mode, the LFRM and LLP waveforms are identical to the waveforms in normal mode, while LD and
LCLK remain in inactive level.
LFLM
LD[7:0]
LLP
LCLK
LREF
Self-Refresh Mode