xr
XRT94L33
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
Rev.1.2.0.
103
V23
GPIO_2
I/O
TTL/CMOS
General Purpose Input/Output pin
This input pin can be configured to function as either an input
or output pin by writing the appropriate value into Bit 2
(GPIO_DIR_2),
within
the
“Operation
General
Purpose
Input/Output Direction Register – 0” (Address Location
=
0x014B).
If this pin is configured to be an input pin, then the state of this
pin can be monitored by reading the state of Bit 2 (GPIO_2)
within the “Operation General Purpose Input/Output Register –
Byte 0” (Address Location = 0x0147).
If this pin is configured to be an output pin, then the state of
this pin can be controlled by writing the appropriate value into
Bit 2 (GPIO_2) within the “Operation General Purpose
Input/Output Register – Byte 0” (Address Location = 0x0147).
AB26
GPIO_3
I/O
TTL/CMOS
General Purpose Input/Output pin
This input pin can be configured to function as either an input
or output pin by writing the appropriate value into Bit 3
(GPIO_DIR_3),
within
the
“Operation
General
Purpose
Input/Output Direction Register – 0” (Address Location
=
0x014B).
If this pin is configured to be an input pin, then the state of this
pin can be monitored by reading the state of Bit 3 (GPIO_3)
within the “Operation General Purpose Input/Output Register –
Byte 0” (Address Location = 0x0147).
If this pin is configured to be an output pin, then the state of
this pin can be controlled by writing the appropriate value into
Bit 3 (GPIO_3) within the “Operation General Purpose
Input/Output Register – Byte 0” (Address Location = 0x0147).
Y25
GPIO_4
I/O
TTL/CMOS
General Purpose Input/Output pin
This input pin can be configured to function as either an input
or output pin by writing the appropriate value into Bit 4
(GPIO_DIR_4),
within
the
“Operation
General
Purpose
Input/Output Direction Register – 0” (Address Location
=
0x014B).
If this pin is configured to be an input pin, then the state of this
pin can be monitored by reading the state of Bit 4 (GPIO_4)
within the “Operation General Purpose Input/Output Register –
Byte 0” (Address Location = 0x0147).
If this pin is configured to be an output pin, then the state of
this pin can be controlled by writing the appropriate value into
Bit 4 (GPIO_4) within the “Operation General Purpose
Input/Output Register – Byte 0” (Address Location = 0x0147).