PEB20571 INFINEON [Infineon Technologies AG], PEB20571 Datasheet - Page 49

• Manufacturer Part Number: PEB20571
• Description: ICs for Communications
• Manufacturer: INFINEON [Infineon Technologies AG]

Table 2-14
Pin
No.
75
80
79
71
Preliminary Data Sheet
Symbol In (I)
RxD1 /
LRxD3
TxD1 /
LTxD3
TSC1 /
LTSC3/
LRTS3
RxD3 /
LCxD3/
LCTS3
PCM Interface Ports 0 ... 3 / LNC Ports 2 ... 3 (DELIC-PB) (Continued)
Out (O)
I
I
O
O(OD)
O
I
I
During
Reset
I
High
Z
PLL
Power-
Down
strap
Internal
pull-up
refer to
page 2-
28
I
After
Reset
I
High
Z
H
I
2-22
Function
PCM Receive Data Port 1
LNC Receive Serial Data Port 3
(HDLC and Async mode)
PCM Transmit Data Port 1
LNC Transmit Serial Data Port 3
(HDLC and Async mode)
PCM Tristate Control Port 1
Supplies a control signal for an external
driver (’low’ when the corresponding TxD-
output is valid).
LNC3 Tristate Control / Request to Send
2 modes per S/W selectable:
1) TxD output is valid (HDLC mode).
Supplies a control signal for an external
driver. (’low’ when the corresponding TxD-
output is valid).
2) ’request-to-send’ functionality
(Async mode)
PCM Receive Data Port 3
LNC3 Collision Data
2 modes per S/W selectable:
1) Collision Data (HDLC Mode).
2) ’clear-to-send’ functionality
(Async mode)
Pin Descriptions
PEB 20571
DELIC
2003-08