Rainbow Electronics 71M6542G - Manual (Page 159)

v1.1 © 2008–2011 Teridian Semiconductor Corporation 159
6.8.3 Digital Pins
Table 119 lists the 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 6.8.4 I/O Equivalent Circuits .
Table 119: Digital Pins
Pin
(64-pin)
Pin
(100-pin)
Name Type Circuit Function
4-7 12–15 COM0–COM3 O 5
LCD Common Outputs. These four pins provide the select
signals for the LCD display.
31 45 SEGDIO0/WPULSE
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
SEGDIO1 = VPULSE
SEGDIO2 = SDCK
SEGDIO3 = SDATA
SEGDIO6 = XPULSE
SEGDIO7 = YPULSE
SEGDIO8 = DI
Unused pins must be configured as outputs or
terminated to V3P3/GNDD.
30 44 SEGDIO1/VPULSE
29 43 SEGDIO2/SDCK
28 42 SEGDIO3/SDATA
27 41 SEGDIO4
26 39 SEGDIO5
25 38 SEGDIO6/XPULSE
24 37 SEGDIO7/YPULSE
23 36 SEGDIO8/DI
22-17 35–30 SEGDIO[9:14]
-- 29-27 SEGDIO[15:17]
-- 25 SEGDIO[18]
16-10 24–18 SEGDIO[19:25]
-- 11–4 SEGDIO[28:35]
63-62 95-94 SEGDIO[44:45]
-- 99–96 SEGDIO[40:43]
-- 52 SEGDIO52
-- 51 SEGDIO53
-- 47 SEGDIO54
9 17 SEGDIO26/COM5
I/O 3, 4, 5
Multiple-Use Pins. Configurable as either LCD segment
driver or DIO with alternative function (LCD common
drivers).
8 16 SEGDIO27/COM4
3 3 SPI_CSZ/SEGDIO36
I/O 3, 4, 5
Multiple-Use Pins. Configurable as either LCD segment
driver or DIO with alternative function (SPI interface).
2 2 SPI_DO/SEGDIO37
1 1 SPI_DI/SEGDIO38
64 100 SPI_CKI/SEGDIO39
33 53 OPT_TX/SEGDIO51
I/O 3, 4, 5
Multiple-Use Pins, configurable as either LCD segment
driver or DIO with alternative function (optical port/UART1)
32 46 OPT_RX/SEGDIO55
38 58 E_RXTX/SEG48
I/O 1, 4, 5 Multiuse Pins. Configurable as either emulator port pins
(when ICE_E pulled high) or LCD segment drivers (when
ICE_E tied to GND). 36 56 E_RST/SEG50
37 57 E_TCLK/SEG49 O 4, 5