DS3170 Maxim Integrated Products, DS3170 Datasheet - Page 129

• Manufacturer Part Number: DS3170
• Description: Network Controller & Processor ICs DS3-E3 Single-Chip T ransceiver T3-E3 Fra
• Manufacturer: Maxim Integrated Products

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit #
Name
Default
Bits 15 to 14: General Purpose IO 8 Select [1:0] (GPIO8S[1:0]). These bits determine the function of the GPIO8
pin. These selections are only valid if GL.CR1.GPM[1:0] is not set to 01.
Bits 13 to 12: General Purpose IO 7 Select [1:0] (GPIO7S[1:0]). These bits determine the function of the GPIO7
pin.
Bits 11 to 10 : General Purpose IO 6 Select [1:0] (GPIO6S[1:0]). These bits determine the function of the
GPIO6 pin. These selections are only valid if GL.CR1.MEIMS=0.
Bits 9 to 8: General Purpose IO 5 Select [1:0] (GPIO5S[1:0]). These bits determine the function of the GPIO5
pin.
Bits 7 to 6: General Purpose IO 4 Select [1:0] (GPIO4S[1:0]). These bits determine the function of the GPIO4
pin. These selections are only valid if
Bits 5 to 4: General Purpose IO 3 Select [1:0] (GPIO3S[1:0]). These bits determine the function of the GPIO3
pin.
Bits 3 to 2: General Purpose IO 2 Select [1:0] (GPIO2S[1:0]). These bits determine the function of the GPIO2
pin. These selections are only valid if GL.CR2.GKROS=0.
00 = Input
01 = Reserved
10 = Output logic 0
11 = Output logic 1
00 = Input
01 = Reserved
10 = Output logic 0
11 = Output logic 1
00 = Input
01 = Reserved
10 = Output logic 0
11 = Output logic 1
00 = Input
01 = Reserved
10 = Output logic 0
11 = Output logic 1
00 = Input
01 = Reserved
10 = Output logic 0
11 = Output logic 1
00 = Input
01 = Reserved
10 = Output logic 0
11 = Output logic 1
00 = Input
01 = Port B status output selected by PORT.CR4:GPIOB[3:0] in port control registers
10 = Output logic 0
11 = Output logic 1
GPIO8S1
GPIO4S1
15
0
7
0
GPIO8S0
GPIO4S0
14
0
6
0
GL.GIOCR
Global General Purpose IO Control Register
00Ah
GL.CR2
GPIO7S1
GPIO3S1
13
0
5
0
.G8KRIS=0.
GPIO7S0
GPIO3S0
129 of 230
12
0
4
0
GPIO6S1
GPIO2S1
11
0
3
0
DS3170 DS3/E3 Single-Chip Transceiver
GPIO6S0
GPIO2S0
10
0
2
0
GPIO5S1
GPIO1S1
9
0
1
0
GPIO5S0
GPIO1S0
8
0
0
0