OXU121HP Datasheet, PDF (11/22 Pages) Oxford Semiconductor – USB On-The-Go Full-Speed Host and High-Speed Peripheral Controller

Oxford Semiconductor, Inc.
OXU121HP Data Sheet
Table 13 lists the LQFP pin allocations.
Table 13 OXU121HP 100-Pin LQFP Pin Allocations (Sheet 1 of 3)
Pin
No. _Type⁽¹⁾
Bits
Processor Interface (37 pins)
Name
Description
2, 3, 4, 5, 8, 9, 10, 16
11, 13, 14, 15, 16,
96, 97, 98, 99
22, 23, 24, 25, 28, 12
29, 30 32, 33, 34,
35, 36
20
1
MSBCT
MSID
MSIU
D₀ - D₁₅
A₁ - A₁₂
/WR
21
1 MSIU
/RD
39
1 MSIU
/CS
19
1 MOCT /INT
86
89, 92
90, 93
1 MSIU
/RESET
2
MOCT
DRQ₁, DRQ₀
2 MSI
ACK₁, ACK₀
General Purpose I/O (1 pin)
88
1 BC
GPIO
16-bit data bus. Pull-up/pull-down can be controlled
through register 0x034, bits 2:1. Default is none
Address bus for direct address space of 8 Kbytes.
Pull-up can be enabled through register 0x034, bits
9:8. Default is pull-down
Write strobe. Pull-up can be disabled through register
0x034, bit 13. Default is pull-up
Read strobe. Pull-up can be disabled through register
0x034, bit 13. Default is pull-up
Chip select. Pull-up can be disabled through register
0x034, bit 13. Default is pull-up
Interrupt to the MCU.This pin can be software
configured as a driven output or open drain. Open
drain is the default
Hardware reset. Pull-up is always enabled
DMA request outputs to support two channels
DMA acknowledge. Pull-up/pull-down can be
controlled through register 0x03A, bits 1:0. Default is
none
General purpose I/O
Power & Ground (34 pins)
1, 12, 27, 41, 51, 8
65, 75, 83
42, 47, 69, 74, 82 5
6, 18, 40, 53, 57, 8
66, 84, 100
43, 48, 70, 73, 81 5
56, 78
2
7, 17, 26, 31, 85, 6
95
USB Interface (13 pins)
V_SS
V_SSA
V_DD1.8
V_DD3.3A
V_DD3.3
V_DDW
Digital/wide-range ground
Analog ground
1.8 V core power. VREGOUT may be used for the
supplies
Analog +3.3 V power
Digital +3.3 V power
Wide-range I/O +1.8 V to +3.3 V. If using +1.8 V,
VREGOUT may be used for these supplies
76, 77
54, 55
2B
2B
DP₂, DM₂
DP₁, DM₁
Data lines for host port 2, a dedicated USB host port.
If not used, these pins should be left floating
Data lines for host port 1, which can serve as a USB
host or an OTG port in combination with the
peripheral port. If not used, these pins should be left
floating
DS-0040 Aug 06
External--Free Release
11