DS_6612_001
78M6612 Data Sheet
Table 47: LCD and DIO Pin Assignment by
LCD_NUM
for the LQFP-64 Package
SEG in Addition to
LCD_NUM
SEG0-SEG18
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
–
–
40
39, 40
39, 40
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
30-31, 34-37, 39,
40
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
Total Number of
LCD Segment Pins
Including SEG0-
SEG18
17
17
18
19
19
20
21
22
23
23
23
24
25
26
27
28
29
30
31
DIO Pins in
Addition to DIO1-
DIO2
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
4-11
4-11
4-11
4-10
4-9
4-8
4-7
4-6
4-5
4
None
Total Number of DIO
Pins Including DIO1,
DIO2
16
16
15
14
14
13
12
11
10
10
10
9
8
7
6
5
4
3
2
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 I C EEPROMs
2
I
2
C EEPROMs or other I
2
C compatible devices should be connected to the DIO pins DIO4 and DIO5, as
shown in
. 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 I
2
C pins SCL and SDA.
Rev. 1.2
69
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
