71M6533/71M6534 Data Sheet
FDS_6533_6534_004
L
LCD_MODE[2:0] 2021[4:2]
0
R/W The LCD bias mode. Use the LCD DAC to reduce saturation. The number of states is
the number of commons which are driven to multiplex the LCD.
LCD_MODE[2:0]
Function
Notes
000
001
010
011
100
4 states, ⅓ bias
3 states, ⅓ bias
2 states, ½ bias
3 states, ½ bias
static display
⅓ bias modes can drive 3.3 V LCDs.
½ bias and static modes can drive
both 3.3 V and 5 V LCDs.
LCD_ONLY
20A9[5]
0
0
W
Puts the 71M6533/71M6534 to sleep, but with the LCD display still active. LCD_ONLY
is ignored if system power is present. While in SLEEP mode, the device will wake up
on reset, when the autowake timer times out, when the push button is pushed, or when
system power returns.
LCD_SEG0[3:0]
…
LCD_SEG18[3:0]
2030[3:0]
…
2042[3:0]
0
…
0
L
…
L
R/W
R/W
LCD Segment Data. Each word contains information for 1 to 4 time divisions of each
segment.
In each word, bit 0 corresponds to COM0, bit 1 to COM1, bit 2 to COM2 and bit 3 to
COM3 of the first segment. Bits 4 through 7 correspond to COM0 to COM3, respec-
tively, of the second segment.
LCD_SEG19[3:0]
…
LCD_SEG31[3:0]
2043[3:0]
…
204F[3:0]
0
…
0
L
…
L
LCD_SEG32[3:0]*
2050[3:0]
0
L
R/W
R/W
Care should be taken when writing to LCD_SEG locations since some of them control
DIO pins.
LCD_SEG33[3:0]
…
LCD_SEG41[3:0]
2051[3:0]
…
2059[3:0]
0
…
0
L
…
L
LCD_SEG32, LCD_SEG42, LCD_SEG48, LCD_SEG51 through LCD_SEG59, LCD_SEG62,
LCD_SEG66, and LCD_SEG72 through LCD_SEG75 are only applicable to the 71M6534.
LCD_SEG42[3:0]*
2030[7:4]
0
L
R/W
R/W
LCD_SEG43[3:0]
…
LCD_SEG47[3:0]
2031[7:4]
…
2035[7:4]
0
…
0
L
…
L
LCD_SEG48[3:0]*
2036[7:4]
0
L
R/W
LCD_SEG49[3:0]
LCD_SEG50[3:0]
2037[7:4]
2038[7:4]
0
0
L
L
R/W
R/W
LCD_SEG51[3:0]* 2039[7:4]
0
…
0
L
…
L
R/W
…
…
LCD_SEG59[3:0]* 2041[7:4]
LCD_SEG61[3:0] 2043[7:4]
LCD_SEG62[3:0]* 2044[7:4]
0
0
L
L
R/W
R/W
84
© 2007-2009 TERIDIAN Semiconductor Corporation
v1.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
