PIC16C923-04I/CL Microchip Technology, PIC16C923-04I/CL Datasheet - Page 96

• Manufacturer Part Number: PIC16C923-04I/CL
• Description: 8-Bit CMOS Microcontroller with LCD Driver
• Manufacturer: Microchip Technology

PIC16C9XX
13.1.2
The timing generation circuitry will generate 1 to 4 com-
mon clocks based on the display mode selected. The
mode
(LCDCON<1:0>). Table 13-1 shows the formulas for
calculating the frame frequency.
TABLE 13-1: FRAME FREQUENCY
DS30444E - page 96
Multiplex Frame Frequency =
Static
1/2
1/3
1/4
is
MULTIPLEX TIMING GENERATION
Clock source / (128 * (LP3:LP0 + 1))
Clock source / (128 * (LP3:LP0 + 1))
Clock source / (96 * (LP3:LP0 + 1))
Clock source / (128 * (LP3:LP0 + 1))
specified
FORMULAS
by
bits
LMUX1:LMUX0
TABLE 13-2: APPROX. FRAME FREQ IN Hz
TABLE 13-3: APPROX. FRAME FREQ IN Hz
LP3:LP0
LP3:LP0
2
3
4
0
1
2
3
5
6
7
USING TIMER1 @ 32.768 kHz OR
Fosc @ 8 MHz
USING INTERNAL RC OSC @
14 kHz
Static
Static
109
55
36
27
85
64
51
43
37
32
1997 Microchip Technology Inc.
109
1/2
36
27
55
1/2
85
64
51
43
37
32
146
114
1/3
1/3
73
49
36
85
68
57
49
43
109
1/4
1/4
55
36
27
85
64
51
43
37
32