V-Tec AT16/C5 Especificaciones Pagina 65

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Si2400
Rev. 1.3 65
Reset settings = 0000_0000
b
(0x00)
SE2 (GPIO). General Purpose Input/Output
BitD7D6D5D4D3D2D1D0
Name
GPIO4 GPIO3 GPIO2 GPIO1
Type R/W R/W R/W R/W
Bit Name Function
7:6 GPIO4 GPIO4.
00 = Digital input.
01 = Digital output (relay drive).
10 = Analog input.
11 = ALERT function triggered by loss of carrier (always), V.23 reversal (always), wake-
on-ring S62[4] (WOR), parallel phone intrusion S33[5] (DOF), or loss of loop current
S82[3] (LCLD).
5:4 GPIO3
GPIO3.
00 = Digital input.
01 = Digital output (relay drive).
01 = Analog input.
11 = ESCAPE function (digital input).
3:2 GPIO2
GPIO2*.
00 = Digital input.
01 = Digital output (relay drive; also used for CD function).
10 = Analog input.
11 = Reserved.
1:0 GPIO1
GPIO1*.
00 = Digital input.
01 = Digital output (relay drive).
10 = Analog input.
11 = Reserved.
*Note: To be used as analog input or GPIO pins; SE4[3] (GPE) and SE4[0] (TRSP) must both equal zero.
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