OXU140CM Data Sheet
Oxford Semiconductor, Inc.
Table 13 lists the LQFP pin allocations.
Table 13 OXU140CM 128-Pin LQFP Pin Allocations (Sheet 1 of 3)
(1)
Pin
No.
Pins
Name
Description
Type
Processor Interface (39 pins)
1, 2, 3, 4, 7, 8, 9, 16
10, 12, 13, 14, 15,
123, 124, 125,
126
MSBCT
D - D
16-bit data bus
0
15
18, 19, 20, 21, 40, 14
41, 42, 43, 44, 45,
46, 47, 48, 50
MSI
A - A
Address bus for direct address space
1
14
16
1
1
1
1
MSIU
MSIU
MSIU
MOCT
/WR
/RD
/CS
/INT
Write strobe
Read strobe
Chip select
17
49
122
Interrupt to the MCU.This pin can be software
configured as a driven output or open drain. Open
drain is the default
112
1
2
2
MSIVI
MOCT
MSI
/RESET
DRQ , DRQ
Hardware reset
118, 115
119, 116
DMA request outputs to support two channels
DMA acknowledge
1
0
ACK , ACK
1
0
General Purpose I/O (3 pins)
114, 117, 120
Power & Ground (39 pins)
3
MSBC
GPIO, GPX , GPX
General purpose I/O
A
B
54, 62, 90, 91, 94,
106
6
V
V
Analog +3.3 V power
Analog ground
DD3.3A
SSA
53, 61, 88, 89, 95,
107
6
75, 102
2
8
V
V
Digital +3.3 V power
DD3.3
DD1.8
5, 24, 51, 66, 76,
85, 109, 127
1.8 V core power. VREGOUT may be used for the
supplies
6. 22, 39, 110,
121
5
V
Wide-range I/O +1.65 V to +3.6 V for the processor
interface
DDW
23, 33, 38
3
9
V
V
Wide-range I/O +1.65 V to +3.6 V for the media port
Digital/wide-range I/O ground
DDCE
SS
11, 28, 34, 52, 65,
84, 97, 108, 128
USB Interface (13 pins)
58, 56
2
B
B
DM , DP
Data lines for USB peripheral port, which may serve
as an OTG port in combination with host port 1. If not
used, these two pins should be left floating
P
P
73, 68
2
DM , DP
Data lines for Host Port 1, which may serve as a USB
host or an OTG port in combination with the
peripheral port. If not used, these two pins should be
left floating
1
1
10
External--Free Release
DS-0038 Jul 06
OXFORD [ OXFORD SEMICONDUCTOR ]
