Datasheet

(23) Low Power Detection (LPD) (R51H)
Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0
Detect Low Power
0 0
0 1 0 1 0 0 0 1
1 1 - - - - - - - LPD
This command indicates the input power condition. Host can read this flag to learn the battery condition.
LPD: Interval Low Power Detection Flag
0: Low power input (VDD < 2.5V) 1: Normal status (default)
(24) TCON Setting (TCON) (R60H)
Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0
Set Gate/Source Non-overlap Period
0 0
0 1 1 0 0 0 0 0
0 1 S2G[3:0] G2S[3:0]
This command defines non-overlap period of Gate and Source.
S2G[3:0] or G2S[3:0]: Source to Gate / Gate to Source Non-overlap period
S2G[3:0] or G2S[3:0] Period S2G[3:0] or G2S[3:0] Period
0000b 4 … …
0001 8 1011 48
0010 12(Default) 1100 52
0011 16 1101 56
0100 20 1110 60
0101 24 1111 64
Period = 660 nS.
(25) Resolution Setting (TRES) (R61H)
Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0
Set Display Resolution
0 0
0 1 1 0 0 0 0 1
0 1 HRES[8]
0 1 HRES[7:3] 0 0 0
0 1 - - - - - - - VRES[8]
0 1 VRES[7:0]
This command defines alternative resolution and this setting is of higher priority than the RES[1:0] in R00H (PSR).
HRES[8:3]: Horizontal Display Resolution
VRES[8:0]: Vertical Display Resolution
Active channel calculation:
4.2" e-Paper
www.waveshare.com
21／45