71M6531D_10 TERIDIAN [Teridian Semiconductor Corporation], 71M6531D_10 Datasheet - Page 66
71M6531D_10
Manufacturer Part Number
71M6531D_10
Description
Energy Meter IC
Manufacturer
TERIDIAN [Teridian Semiconductor Corporation]
Datasheet
1.71M6531D_10.pdf
(120 pages)
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multiplexed LCDs.
The following dedicated and multi-use pins can be assigned as LCD segment pins for the 71M6531D/F:
•
•
•
The following dedicated and multi-use pins can be assigned as LCD segments for the 71M6532D/F:
•
•
•
Data Sheet 71M6531D/F-71M6532D/F
3.5
The 71M6531D/F and 71M6532D/F have an on-chip LCD controller capable of controlling static or
3.6
I
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[1:0] register in I/O RAM must be set to 01 in order to convert
the DIO pins DIO4 and DIO5 to I
66
2
C EEPROMs or other I
12 dedicated LCD segment pins: SEG0 to SEG2, SEG7, SEG8, SEG12 to SEG18.
7 dual-function pins: SEG3/PCLK, SEG4/PSDO, SEG5/PCSZ, SEG6/PSDI, E_RXTX/SEG9,
E_TCLK/SEG10, and E_RST/SEG11.
14 combined DIO and segment pins: SEG24/DIO4 to SEG35/DIO15, SEG37/DIO17, SEG48/DIO28,
SEG49/DIO29 and SEG63/DIO43 to SEG66/DIO46.
15 dedicated LCD segment pins: SEG0 to SEG2, SEG8, SEG12 - SEG18, SEG20 - SEG23.
9 dual-function pins: MUX_SYNC/SEG7, E_RXTX/SEG9, E_TCLK/SEG10, E_RST/SEG11,
SEG3/PCLK, SEG4/PSDO, SEG5/PCSZ, SEG6/PSDI.
43 combined DIO and segment pins, as described in section 1.5.8.
Connecting LCDs
Connecting I
Figure
33.
Figure 32
2
2
C compatible devices should be connected to the DIO pins DIO4 and DIO5, as
© 2005-2010 TERIDIAN Semiconductor Corporation
C EEPROMs
.
shows the basic connection for an LCD.
71M6531D/F or 71M6532D/F
2
71M6531D/F
71M6532D/F
C pins SCL and SDA.
Figure 33: I
Figure 32: Connecting LCDs
DIO4
DIO5
2
C EEPROM Connection
10 k Ω
10 k Ω
LCD
EEPROM
SCL
SDA
segments
V3P3D
commons
FDS 6531/6532 005
v1.3
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