DS3170 Maxim Integrated Products, DS3170 Datasheet - Page 130

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

Bits 1 to 0: General Purpose IO 1 Select [1:0] (GPIO1S[1:0]). These bits determine the function of the GPIO1
pin.
Register Name:
Register Description:
Register Address:
Bit #
Name
Bit #
Name
Bit 4: Port Interrupt Status Register (PISR) This bit is set when any of the bits in the port interrupt status
registers (PORT.ISR) are set. The INT interrupt pin will be driven low when this bit is set and the GL.ISRIE.PISRIE
interrupt enable bit is enabled.
Bit 0: Global Status Register Interrupt Status (GSR) This bit is set when any of the latched status register bits
in the global latched status register (GL.SRL) are set and enabled for interrupt. The INT interrupt pin will be driven
low when this bit is set and the GL.ISRIE.GSRIE interrupt enable bit is enabled.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit #
Name
Default
Bit 4: Port Interrupt Status Register Interrupt Enable (PISRIE) When this is enabled and the
status bit is set, the INT pin will be driven low.
Bit 0: Global Status Register Interrupt Status Interrupt Enable (GSRIE) When this interrupt enable bit is
enabled, and the GL.ISR.GSR status bit is set, the INT pin will be driven low.
00 = Input
01 = Port A status output selected by PORT.CR4:GPIOA[3:0] in port control registers
10 = Output logic 0
11 = Output logic 1
0 = interrupt disabled
1 = interrupt enabled
0 = interrupt disabled
1 = interrupt enabled
15
15
--
--
--
--
7
0
7
0
14
14
--
--
--
--
6
0
6
0
GL.ISR
Global Interrupt Status Register
010h
GL.ISRIE
Global Interrupt Status Register Interrupt Enable
012h
13
13
--
--
--
--
5
0
5
0
130 of 230
PISRIE
PISR
12
12
--
--
4
0
4
0
11
11
--
--
--
--
3
0
3
0
DS3170 DS3/E3 Single-Chip Transceiver
10
10
--
--
--
--
2
0
2
0
RESERVED
--
--
9
1
--
9
0
1
0
GL.ISR.
GSRIE
GSR
--
--
8
0
8
0
0
0
PISR