
Agere Systems Inc.
21
Data Sheet
July 2001
T8302 Internet Protocol Telephone
Advanced RISC Machine (
ARM
)
2 Pinout Information
(continued)
Ball
Signal
Description
I/O
Pull-Up/Down
Source/Sink
Current
Parallel Port Interface
(continued)
F19
E20
G17
F18
E19
D20
PPI[5]
PPI[4]
PPI[3]
PPI[2]
PPI[1]
PPI[0]
Parallel peripheral interface bit 5
Parallel peripheral interface bit 4
Parallel peripheral interface bit 3
Parallel peripheral interface bit 2
Parallel peripheral interface bit 1
Parallel peripheral interface bit 0
I/O
*
I/O
*
I/O
*
I/O
*
I/O
*
I/O
*
—
—
—
—
—
—
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
Key and Lamp Controller
W3
Y2
W4
V4
U5
Y3
Y4
V5
W5
Y5
V6
U7
W6
Y6
V7
W7
Y7
V8
W8
K_ROW[6]
K_ROW[5]
K_ROW[4]
K_ROW[3]
K_ROW[2]
K_ROW[1]
K_ROW[0]
K_COL[7]
K_COL[6]
K_COL[5]
K_COL[4]
K_COL[3]
K_COL[2]
K_COL[1]
K_COL[0]
LCNTRL
MSGLED
SPKRLED
SWHOOK
Row 6—0. Row outputs for the LED drive matrix and
key scan matrix
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
*
50 k
pull-down
I/O
*
50 k
pull-down
I/O
*
50 k
pull-down
I/O
*
50 k
pull-down
I/O
*
50 k
pull-down
I/O
*
50 k
pull-down
I/O
*
50 k
pull-down
I/O
*
50 k
pull-down
O
O
O
I
*
—
—
—
—
—
—
—
8 ma/8 ma
8 ma/8 ma
8 ma/8 ma
8 ma/8 ma
8 ma/8 ma
8 ma/8 ma
8 ma/8 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
4 ma/4 ma
8 ma/8 ma
8 ma/8 ma
8 ma/8 ma
8 ma/8 ma
Column 7—0. Column outputs for LED drive matrix
and inputs for key scan matrix
High active output used to enable LED drive matrix
Message LED direct drive output pin
Speaker LED direct drive output pin
Switch-hook
Ethernet Port to the PC
Transmit data,
negative differential
Transmit data,
positive differential
Received data, positive differential
Received data,
negative differential
Ethernet Port to the Network
Transmit data,
negative differential
Transmit data,
positive differential
Received data, positive differential
Received data,
negative differential
—
—
—
—
M19
M20
V20
U20
TPOB[1]
TPO[1]
TPI[1]
TPIB[1]
O
O
I
I
—
—
—
—
—
—
—
—
L19
L20
T19
T20
TPOB[0]
TPO[0]
TPI[0]
TPIB[0]
O
O
I
I
—
—
—
—
—
—
—
—
*Schmitt trigger input.
Table 1. PBGA-272 Package
(continued)