SAM4L Datasheet, PDF (1049/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

39.7.3 Timing Register
Name:
TIM
Access Type:
Read/Write
Offset:
0x08
Reset Value:
0x00000000
31
30
29
28
27
26
-
-
-
FC2
23
22
21
20
19
18
-
-
-
FC1
15
14
13
12
11
10
-
-
FC0PB
FC0
7
6
5
4
3
2
-
-
-
-
CLKDIV
CLKDIV and PRESC shall not be modified when LCD controller is enabled.
FCx shall not be modified when Frame Counter x is enabled.
• FC2: Frame Counter 2
Number of frame before rollover = ((FC2 * 8) + 1).
• FC1: Frame Counter 1
Number of frame before rollover = ((FC1 * 8) + 1).
• FC0PB: Frame Counter 0 Prescaler Bypass
0: FC Prescaler is not bypassed
1: FC Prescaler is bypassed
• FC0: Frame Counter 0
Number of frame before rollover = ((FC0 * 8) + 1) if FC0PB=0 else (FC0 + 1).
• CLKDIV: LCD Clock Division
Defines the LCD frame rate.
FrameRate
=
-------------------------------------^F----⁽---^c---^l--^k---^L---^C---^D----⁾-------------------------------------
(K × N × (1 + CLKDIV) × 2^{(1 – WMOD)})
K = 8 for 1/4, 1/2 and static duty.
K = 6 for 1/3 duty.
• PRESC: LCD Prescaler Select
0: N = 8
1: N = 16
ATSAM4L4/L2
25
24
17
16
9
8
1
0
PRESC
42023C–SAM–02/2013
1049