Maxim Integrated 71M6533-DB - Manual (Page 71)

71M6533- DB Demo Board User’s Manual
Page: 71 of 75 REV 3
Digital Pins:
Name Type Pin # Description
COM3,
COM2,
COM1,
COM0
O
21,
20,
19,
18
LCD Common Outputs: These 4 pins provide the select signals for the LCD
display.
SEG0…SEG2,
SEG12,
SEG13 …SEG15,
SEG16…SEG18,
SEG20…SEG23,
DIO3,
DIO56…DIO58
O
26-
28,
45
47-
49,
51-53
56-
59,
17,
14-16
Dedicated LCD Segment Outputs.
SEG24/DIO4
…
SEG31/DIO11,
SEG33/DIO13
…
SEG41/DIO21,
SEG43/DIO23
…
SEG47/DIO27,
SEG49/DIO29
…
SEG50/DIO30,
SEG61/DIO41,
SEG63/DIO43
…
SEG65/DIO45,
SEG67/DIO47
…
SEG71/DIO51
I/O
Multi-use pins, configurable as either LCD SEG driver or DIO. (DIO4 = SCK,
DIO5 = SDA when configured as EEPROM interface, WPULSE = DIO6,
VARPULSE = DIO7, DIO8 = XPULSE, DIOO9 = YPULSE when configured
as pulse outputs). Unused pins must be configured as outputs or tied to
V3P3D or GNDD.
SEG3/PCLK
SEG4/PSDO
SEG5/PCSZ
SEG6/PSDI
I/O
6,
10,
11,
34
Multi-use pins, configurable as either LCD segment driver or SPI PORT.
E_RXTX/SEG9
I/O
2,
98
Multi-use pins, configurable as either emulator port pins (when ICE_E pulled
high) or LCD SEG drivers (when ICE_E tied to GND).
E_RST/SEG11
E_TCLK/SEG10 O 100
ICE_E I 55
ICE enable. When low, E_RST, E_TCLK, and E_RXTX become LCD
segment pins. For production units, this pin should be pulled to GND to
disable the emulator port.
CKTEST/SEG19,
MUXSYNC/SEG7
O
8,
36
Multi-use pins, configurable as either Clock PLL/multiplexer control outputs
or LCD segment drivers. CKTEST can be enabled and disabled by
CKOUT_EN.
TMUXOUT O 4 Digital output test multiplexer. Controlled by DMUX[3:0].