w66910 Winbond Electronics Corp America, w66910 Datasheet - Page 11

• Manufacturer Part Number: w66910
• Description: Te Mode Isdn S/t-controller With Microprocessor Interface
• Manufacturer: Winbond Electronics Corp America

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