DS_6612_001
78M6612 Data Sheet
Table 47: LCD and DIO Pin Assignment by LCD_NUM for the LQFP-64 Package
Total Number of
SEG in Addition to LCD Segment Pins
DIO Pins in
Addition to DIO1- Pins Including DIO1,
Total Number of DIO
LCD_NUM
SEG0-SEG18
Including SEG0-
SEG18
DIO2
DIO2
0
1
–
–
17
17
18
19
19
20
21
22
23
23
23
24
4-11, 14-17, 19, 20
4-11, 14-17, 19, 20
4-11, 14-17, 19
4-11, 14-17
4-11, 14-17
4-11, 14-16
4-11, 14-15
4-11, 14
16
16
15
14
14
13
12
11
10
10
10
9
2
40
3
39, 40
4
39, 40
5
37, 39, 40
36-37, 39, 40
35-37, 39, 40
34-37, 39, 40
34-37, 39, 40
34-37, 39, 40
31, 34-37, 39, 40
6
7
8
4-11
9
4-11
10
11
4-11
4-10
30-31, 34-37, 39,
40
12
13
14
15
16
17
18
25
26
27
28
29
30
31
4-9
4-8
4-7
4-6
4-5
4
8
7
6
5
4
3
2
29-31, 34-37, 39,
40
28-31, 34-37, 39,
40
27-31, 34-37, 39,
40
26-31, 34-37, 39,
40
25-31, 34-37, 39,
40
24-31, 34-37, 39,
40
None
Note: LCD segment numbers are given without CKTEST/SEG19, E_RXTX/SEG38, E_TCLK/SEG33,
and E_RST/SEG32.
Note: SEG14 and SEG15 are not available in the 64-pin package.
3.7 Connecting I2C EEPROMs
I2C EEPROMs or other I2C compatible devices should be connected to the DIO pins DIO4 and DIO5, as
shown in Figure 32. Pull-up resistors of roughly 10 kΩ to V3P3D (to ensure operation in BROWNOUT
mode) should be used for both SCL and SDA signals. The DIO_EEX register in I/O RAM must be set to
01 in order to convert the DIO pins DIO4 and DIO5 to I2C pins SCL and SDA.
Rev. 1.2
69
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
