OXU121HP Datasheet, PDF(15/22 Page) Oxford Semiconductor – USB On-The-Go Full-Speed Host and High-Speed Peripheral Controller

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OXU121HP Datasheet, PDF (15/22 Pages) Oxford Semiconductor – USB On-The-Go Full-Speed Host and High-Speed Peripheral Controller

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Oxford Semiconductor, Inc.

OXU121HP Data Sheet

Table 14 lists the BGA pin allocations.

Table 14 OXU121HP 84-Ball BGA Pin Allocations (Sheet 1 of 3)

No.

Bits

Processor Interface (37 pins)

Type(1)

Name

Description

A3, C4, B3, A2, A1, 16

B1, B2, C1, C2, D1,

D2, D3, E1, E2, F2,

H1, H2, J2, J1, K2, 12

K1, J3, K3, J4, H4,

K4, J5

MSBCT

MSID

MSIU

D0 - D15

A1 - A12

/WR

1 MSIU

/RD

1 MSIU

/CS

1 MOCT /INT

C7, A6

A5, A4

1 MSIU

2 MOCT

2 MSI

General Purpose I/O (1 pin)

/RESET

DRQ0, DRQ1

ACK1, ACK0

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 (20 pins)

C3, C8, H6

B10, C10, E8,K6, K8 5

C5, E3, H3

B9, C9, D9, H7, K9 5

C6, H8

F3, H5

USB Interface (13 pins)

A9, A10

J10, H9

J7, K7

VSS

VSSA

VDD1.8

VDD3.3A

VDD3.3

VDDW

DP2, DM2

DP1, DM1

DPP, DMP

Digital ground

Analog ground

1.8 V core power. VREGOUT may be used for these

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

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

Data lines for USB peripheral port, which can serve as an

OTG port in combination with host port 1. If not used,

these pins should be left floating

DS-0040 Aug 06

External--Free Release

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