W66910 Datasheet, PDF (11/81 Pages) Winbond – TE Mode ISDN S/T-Controller with Microprocessor Interface

Data Sheet
W66910 PCI ISDN S/T Controller
4. PIN DESCRIPTION
TABLE 4.1 W66910 PIN
Notation : The suffix "#" indicates an active LOW signal. In Intel or Motorola bus mode, all unspecified pins must be left
unconnected.
Pin Name
Pin Number
Type Functions
Intel Bus Mode (Enabled when CLK=HIGH)
CLK
84
I
This pin must be pulled to HIGH.
AD7-0
38,39,40,41,44,45
I/O
Multiplexed address and data. During the address phase, AD7-0
,46,47
contains a 8-bit physical address. During the data phase, AD7-AD0
contains data.
CS#
12
I
Chip select.
ALE
13
I
Address Latch Enable. Used to latch addresses.
RD#
37
I
Read.
WR#
22
I
Write.
RST#
81
I
Reset.
INT#
80
O
Interrupt. This is a level sensitive, active LOW and open drain output.
Motorola Bus Mode (Enabled when CLK=LOW)
CLK
84
I
This pin must be pulled to LOW.
D7-D0
38,39,40,41,44,45
I/O
Data.
,46,47
A7-A0
7,8,9,10,33,34,35,
I
Address.
36
CS#
12
I
Chip select.
DS#
22
I
Data strobe.
RW
37
I
Read/write identify. HIGH for read, and LOW for write.
RST#
81
I
Reset.
INT#
80
O
Interrupt. This is a level sensitive, active LOW and open drain output.
GCI Bus
DCL
72
I/O
GCI Bus Data Clock of the frequency: 1.536 MHz. Needs external pull-
up.
FSC
71
I/O
GCI Bus Frame Synchronization Clock: 8KHz. Needs external pull-up.
DD
70
I/O
GCI Bus Data Downstream : Slave mode - input, master mode - output.
Needs external pull-up.
DU
69
I/O
GCI Bus Data Upstream : Slave mode - output, master mode - input.
Needs external pull-up.
PCM Interface
PFCK1
64
O
PCM port 1 frame synchronization signal, with 8 KHz repetition rate
and 8 bit pulse width.
PFCK2
62
O
PCM port 2 frame synchronization signal, with 8 KHz repetition rate
and 8 bit pulse width.
PBCK
63
O
PCM bit synchronization clock of 1.536 MHz.
PTXD
65
O
PCM transmit data output. A maximum of two channels with 64 Kbit/s
data rate can be multiplexed on this signal.
PRXD
66
I
PCM receive data input. A maximum of two channels with 64 Kbit/s
11
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Revision 1.0