参数资料
型号: 71M6543F-IGTR/F
厂商: Maxim Integrated
文件页数: 149/154页
文件大小: 0K
描述: IC ENERGY METER 64K FLSH 100LQFP
标准包装: 1,000
系列: *
71M6543F/71M6543G Data Sheet
6.8.3
71M6543 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 6.8.4 .
Table 112: 71M6543 Digital Pins
Pin
12–15
Name
COM0–COM3
Type
O
Circuit
5
Function
LCD Common Outputs. These four pins provide the select
signals for the LCD display.
45
44
43
SEGDIO0/WPULSE
SEGDIO1/VPULSE
SEGDIO2/SDCK
42
41
39
38
37
36
35–27
25–18
11–4
99–94
SEGDIO3/SDATA
SEGDIO4
SEGDIO5
SEGDIO6/XPULSE
SEGDIO7/YPULSE
SEGDIO8/DI
SEGDIO[9:17]
SEGDIO[18:25]
SEGDIO[28:35]
SEGDIO[40:45]
I/O
3, 4, 5
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.
52
51
47
SEGDIO52
SEGDIO53
SEGDIO54
17
16
SEGDIO26/COM5
SEGDIO27/COM4
I/O
3, 4, 5
Multiple-Use Pins. Configurable as either LCD segment
driver or DIO with alternative function (LCD common
drivers).
3
SPI_CSZ/SEGDIO36
2
1
SPI_DO/SEGDIO37
SPI_DI/SEGDIO38
I/O
3, 4, 5
Multiple-Use Pins. Configurable as either LCD segment
driver or DIO with alternative function (SPI interface).
100
SPI_CKI/SEGDIO39
53
46
58
56
57
59
92
93
OPT_TX/SEGDIO51
OPT_RX/SEGDIO55
E_RXTX/SEG48
E_RST/SEG50
E_TCLK/SEG49
ICE_E
TMUXOUT/SEG47
TMUX2OUT/SEG46
I/O
I/O
O
I
O
3, 4, 5
1, 4, 5
4, 5
2
4, 5
Multiple-Use Pins, configurable as either LCD segment
driver or DIO with alternative function (optical port/UART1)
Multiuse Pins. Configurable as either emulator port pins
(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 .
v2
149
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