71m6543h-igtr/f Maxim Integrated Products, Inc., 71m6543h-igtr/f Datasheet - Page 152

• Manufacturer Part Number: 71m6543h-igtr/f
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

12–15
35–27
25–18
99–94
11–4
100
71M6543F/H Data Sheet
6.9.3 71M6543F/H Digital Pins
Pin types: P = Power, O = Output, I = Input, I/O = Input/Output, N/C = no connect. The circuit number
denotes the equivalent circuit, as specified in Section 6.9.4.
Pin
152
45
44
43
42
41
39
38
37
36
52
51
47
17
16
53
46
58
56
57
59
92
93
3
2
1
SPI_CSZ/SEGDIO36
OPT_RX/SEGDIO55
SPI_CKI/SEGDIO39
OPT_TX/SEGDIO51
SPI_DO/SEGDIO37
TMUX2OUT/SEG46
SEGDIO0/WPULSE
SPI_DI/SEGDIO38
SEGDIO1/VPULSE
SEGDIO6/XPULSE
SEGDIO7/YPULSE
SEGDIO26/COM5
SEGDIO27/COM4
TMUXOUT/SEG47
SEGDIO3/SDATA
E_RXTX/SEG48
SEGDIO2/SDCK
E_TCLK/SEG49
SEGDIO[18:25]
SEGDIO[28:35]
SEGDIO[40:45]
E_RST/SEG50
COM0–COM3
SEGDIO[9:17]
SEGDIO8/DI
SEGDIO52
SEGDIO53
SEGDIO54
SEGDIO4
SEGDIO5
ICE_E
Name
© 2008–2011 Teridian Semiconductor Corporation
Type
I/O
I/O
I/O
I/O
I/O
Table 112: 71M6543F/H Digital Pins
O
O
O
I
Circuit
3, 4, 5
3, 4, 5
3, 4, 5
3, 4, 5
1, 4, 5 Multiuse Pins. Configurable as either emulator port pins
4, 5
4, 5
5
2
LCD Common Outputs. These four pins provide the select
signals for the LCD display.
Multiple-Use Pins. Configurable as either LCD segment
driver or DIO. Alternative functions with proper selection of
associated I/O RAM registers are:
SEGDIO0 = WPULSE (45)
SEGDIO1 = VPULSE (44)
SEGDIO2 = SDCK (43)
SEGDIO3 = SDATA (42)
SEGDIO6 = XPULSE (38)
SEGDIO7 = YPULSE (37)
SEGDIO8 = DI (36)
Unused pins must be configured as outputs or
terminated to V3P3/GNDD.
Multiple-Use Pins. Configurable as either LCD segment
driver or DIO with alternative function (LCD common
drivers).
Multiple-Use Pins. Configurable as either LCD segment
driver or DIO with alternative function (SPI interface).
Multiple-Use Pins, configurable as either LCD segment
driver or DIO with alternative function (optical port/UART1)
(when ICE_E pulled high) or LCD segment drivers (when
ICE_E tied to GND).
ICE Enable. When zero, E_RST, E_TCLK, and E_RXTX
become SEG50, SEG49, and SEG48 respectively. For
production units, this pin should be pulled to GND to disable
the emulator port.
Multiple-Use Pins. Configurable as either multiplexer/clock
output or LCD segment driver using the I/O RAM registers.
Function
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