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FO-1850TH
XFC-MVP (IC3) Terminal descriptions
Pin Name
Pin No.
OPO[7:0]
[38:40][42:44]
[46:47]
OPI[3:0]
[49:52]
LEDCTL
55
LCDCS
54
GPIO[7:0]/
[86:87][89:94]
VID[7:0]
GPIO[10:8]/
[83:85]
VDC[2:0]
GPIO11/BE/
82
SERINP
GPIO12/
80
CS2n/SCLK
GPIO13/
79
CS3n/TXD
GPIO14/
78
CS4n/RXD
GPIO15/
77
CS5n
GPIO16/
76
IRQ8
GPIO17/
75
IRQ5n
GPIO18/
74
IRQ10n
GPIO[19]/RDY
73
/SEROUT
SM[3:0]/
[103:106]
GPO[7:4]
PM[3:0]/
[115:118]
GPO[3:0]
TONE
119
−Vref
66
+Vref
68
ADGA
69
ADVA
70
ADGD
72
ADVD
71
VIN
67
THADI
65
VSS (12)
134, 132, 108,
95, 88, 64, 56,
53, 45, 28, 21,7
VDD (8)
140, 123, 102,
81, 48, 41, 32,
14
VDRAM
114
VBAT
63
NC
107
Input
Output
I/O
Type
Type
Operator Panel Interface
−
O
2XL
Keyboard/LED strobe [7:0].
−
I
HU
Keyboard return [3:0]. (Pullup. Hysteresis In.)
−
O
4XC
Indicates outputs OPO [7:0] are for LEDs.
−
O
1XC
LCD chip select.
General Purpose I/O
I/O
H
2XC
Programmable: GPIO (8 lines) or video data bus.
I/O
H
2XC
Programmable: GPIO (3 lines) or video data control signals.
I/O
H
1XC
Programmable: GPIO line, Bus Enable, serial data input (Autobaud).
I/O
H
2XC
Programmable: GPIO line, I/O chip select or SCLK (SART).
I/O
H
2XC
Programmable: GPIO line, I/O chip select or TXD (SART).
I/O
H
2XC
Programmable: GPIO line, I/O chip select or RXD (SART).
I/O
H
2XC
Programmable: GPIO line or I/O chip select.
I/O
H
1XC
Programmable: GPIO line or active high interrupt.
I/O
H
1XC
Programmable: GPIO line or active low interrupt.
I/O
H
1XC
Programmable: GPIO line or active low interrupt.
I/O
H
1XC
Programmable: GPIO line, Ready or Serial out (Autobaud).
Miscellaneous
−
O
1XC
Programmable: scan motor control pins or GPO pins.
−
O
1XC
Programmable: print motor control pins or GPO pins.
−
O
1XC
Tone output signal.
Power, Reference Voltages, Ground
−VR
−
I
Negative Reference Voltage for Video A/D.
−
I
+VR
Positive Reference Voltage for Video A/D.
VADG
A/D Analog Ground.
VADV
A/D Analog Power.
VADG
A/D Digital Ground.
VADV
A/D Digital Power.
−
I
VA
Analog Video A/D input.
−
I
TA
Analog Thermal A/D input.
Digital Ground.
Digital Power.
Battery power for DRAM refresh.
Battery Power, for RTC and SRAM.
No Connection
No connection.
Pin Description
5 – 4
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