T8207-BAL-DT Agere Systems, Inc., T8207-BAL-DT Datasheet - Page 90

• Manufacturer Part Number: T8207-BAL-DT
• Description: CelXpres ATM interconnect. Dry-bagget, tape & reel .
• Manufacturer: Agere Systems, Inc.

CelXpres T8207
ATM Interconnect
14 Registers
14.2.3 General-Purpose I/O Control Registers
Table 47. GPIO Output Enable (GPIO_OE) (39h)
Table 48. GPIO Output Value (GPIO_OV) (3Bh)
Table 49. GPIO Input Value (GPIO_IV) (3Dh)
90
GPIO_out[7:0]
GPIO_oe[7:0]
GPIO_in[7:0]
Name
Name
Name
Bit Pos. Type
Bit Pos. Type
Bit Pos. Type
7:0
7:0
7:0
(continued)
RW
RO
RW
Reset
Reset
Reset
0
0
0
GPIO Input Buffer. This buffer contains the values at the GPIO[7:0]
pins.
GPIO Output Enable. If this bit is set to ‘1,’ the corresponding GPIO
pin is an output. If cleared to ‘0,’ the corresponding GPIO pin is an
input.
GPIO Output Buffer. Output bits for the GPIO[7:0] pins are written to
this buffer. A bit in this buffer is only written to the pin if the corre-
sponding output enable bit is high.
Description
Description
Description
Advance Data Sheet
September 2001
Agere Systems Inc.