PEB20570 Datasheet, PDF (49/291 Pages) Infineon Technologies AG – ICs for Communications

DELIC
PEB 20571
Pin Descriptions
Table 2-14 PCM Interface Ports 0 ... 3 / LNC Ports 2 ... 3 (DELIC-PB) (Continued)
Pin Symbol In (I) During After Function
No.
Out (O) Reset Reset
75 RxD1 / I
I
I
PCM Receive Data Port 1
LRxD3 I
80 TxD1 / O
High
Z
LTxD3 O(OD)
High
Z
79 TSC1 / O
LTSC3/
LRTS3
PLL
H
Power-
Down
strap
Internal
pull-up
refer to
page 2-
28
71 RxD3 / I
I
I
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
LCxD3/ I
LCTS3
LNC3 Collision Data
2 modes per S/W selectable:
1) Collision Data (HDLC Mode).
2) ’clear-to-send’ functionality
(Async mode)
Preliminary Data Sheet
2-22
2003-08