OXFW900-TQ-A Datasheet, PDF (5/30 Pages) List of Unclassifed Manufacturers – IEEE1394 to ATA/ATAPI Native Bridge

OXFORD SEMICONDUCTOR LTD.
OXFW900
3 PIN DESCRIPTIONS
1394 PHY-LINK interface
104, 105, 108, 109, 110, 111, 115,
116
117,118
120
122
102
103
ARM external interface
2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14,
15, 18, 19, 20, 21
35, 36, 37, 40, 41, 42, 43, 44, 45,
48, 49, 50, 51, 52, 53, 54, 60
25, 26, 29, 30
Dir¹
I/O
I/O
I
O
IU
O
T_I/O
T_O
T_O
Name
PD[7:0]
CTL[1:0]
PHYCLK
LREQ
LINKON
LPS
D[15:0]
A[16:0]
CS#[3:0]
31
T_O OE#
32, 33
34
62
T_O BWR#[1:0]
T_O WE#
ID WIDTH16
61
IDE interface
65, 66, 69, 70, 71, 72, 73, 74, 77,
78, 79, 80, 81, 82, 85, 86
97, 98, 99
100, 101
63
T_IU INT#
T_I/O ID[15:0]
T_O IA[2:0]
T_O ICS#[1:0]
T_O IDE_OE#[
64
89
90
91
92
95
96
EEPROM interface
128
126
1
127
Miscellaneous Pins
57
T_O IRESET
T_I DMARQ
T_O DIOW#
T_O DIOR#
T_O IORDY
T_O DMACK#
T_I INTRQ
O GPO3
O GPO1
IU GPI
O GPO2
I XTLI
58
O XTLO
Description
Phy-Link Data Bus
Phy-Link Control Bus
49.152 MHz clock sourced by PHY
Link Request
Requests link to power up when in a low power mode
Indicates to phy that link is powered and ready
ARM external data bus
ARM external address bus
ARM external chip selects. CS0# is always used for program
ROM.
ARM external output enable. Active when reading data from
external devices including program ROM
Byte Write enables. For future expansion
Write Enable. Active when writing to external devices
‘1’ = 16 bit external ROM ‘0’ = 8 bit external ROM
(pulldown)
External ARM interrupt
IDE data bus
IDE address bus
IDE chip select. Selects IDE drive 0 or 1
IDE output enable. Only used when external buffering is
required to drive IDE data bus
IDE interface reset
IDE interface write strobe
IDE interface read strobe
General Purpose Output 3
General Purpose Output 1
General Purpose Input
General Purpose Output 2
Crystal Oscillator input. 24.576 MHz crystal required. If a
clock module is used rather than a crystal then this input
must be tied high for the OXFW900 to operate, and the clock
module output connected to the CKIN pin. IMPORTANT -
See Application Notes regarding clocking
Crystal Oscillator output. IMPORTANT – See Application
Notes regarding clocking.
Data Sheet Revision 1.0
Page 5