XR17V354 Holtek Semiconductor Inc., XR17V354 Datasheet

XR17V354

Manufacturer Part Number

XR17V354

Description

Manufacturer

Holtek Semiconductor Inc.

Datasheet

1.XR17V354.pdf (66 pages)

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Bonase Electronics (HK) Co., Limited

Part Number:

XR17V354IB176-F

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EXAR

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BOSTOCK HK LIMITED

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XR17V354IB176-F

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Meier Automation Equipment Co., Limited

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XR17V354IB176-F

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JULY 2009

GENERAL DESCRIPTION

The XR17V354

PCI Express (PCIe) UART (Universal Asynchronous

Receiver and Transmitter), optimized for higher

performance and lower power. The V354 serves as a

single lane PCIe bridge to 4 indepedent enhanced

16550 compatible UARTs. The V354 is compliant to

PCIe 2.0 Gen 1 (2.5GT/s).

In addition to the UART channels, the V354 has 16

multi-purpose I/Os (MPIOs), a 16-bit general purpose

counter/timer and a global interrupt status register to

optimize interrupt servicing.

Each UART of the V354 has many enhanced

features such as the 256-bytes TX and RX FIFOs,

programmable Fractional Baud Rate Generator,

Automatic Hardware or Software Flow Control, Auto

RS-485 Half-Duplex Direction Control, programmable

TX and RX FIFO Trigger Levels, TX and RX FIFO

Level Counters, infrared mode, and data rates up to

25Mbps. The V354 is available in a 176-pin FPBGA

package (13 x 13 mm).

APPLICATIONS

•

Exar

OTE

IGURE

Next generation Point-of-Sale Systems

Remote Access Servers

Storage Network Management

Factory Automation and Process Control

Multi-port RS-232/RS-422/RS-485 Cards

Corporation 48720 Kato Road, Fremont CA, 94538

#6,865,626 and #6,947,999

1. B

Covered by U.S. Patents #5,649,122, #6,754,839,

LOCK

(V354) is a single chip 4-channel

IAGRAM OF THE

C L K R E Q #

P E R S T #

E N 4 8 5 #

C L K +

C L K -

E N IR #

D [ 7 :0 ]

T X +

T X -

R X +

R X -

E E C K

E E D I

E E D O

E E C S

M O D E

P R E S

S E L

C L K

IN T

E x p a n s io n

XR17V354

C o n f ig u r a t io n

In te r f a c e

P C I L o c a l

In t e r f a c e

In te r fa c e

E E P R O M

In te r fa c e

R e g is t e r s

S p a c e

P C Ie

B u s

PRELIMINARY

HIGH PERFORMANCE QUAD PCI-EXPRESS UART

1 2 5 M H z C lo c k

T im e r /C o u n te r

B u c k R e g u la to r

C o n fig u r a tio n

R e g is te r s

1 6 - b it

G lo b a l

•

(510) 668-7000

FEATURES

•

Single 3.3V power supply

Internal buck regulator for 1.2V core

PCIe 2.0 Gen 1 compliant

x1 Link, dual simplex, 2.5Gbps in each direction

Expansion bus interface

EEPROM interface for configuration

Data read/write burst operation

Global interrupt status register for all four UARTs

Up to 25 Mbps serial data rate

16 multi-purpose inputs/outputs (MPIOs)

16-bit general purpose timer/counter

Sleep mode with wake-up Indicator

Four independent UART channels controlled with

Software compatible to XR17C15x, XR17D15x,

XR17V25x PCI UARTs

■

16550 compatible register Set

256-byte TX and RX FIFOs

Programmable TX and RX Trigger Levels

TX/RX FIFO Level Counters

Fractional baud rate generator

Automatic RTS/CTS or DTR/DSR hardware

flow control with programmable hysteresis

Automatic Xon/Xoff software flow control

RS-485 half duplex direction control output

with programmable turn-around delay

Multi-drop with Auto Address Detection

Infrared (IrDA 1.1) data encoder/decoder

U A R T

R e g s

B R G

C r y s ta l O s c /B u ff e r

U A R T C h a n n e l 1

U A R T C h a n n e l 2

U A R T C h a n n e l 3

U A R T C h a n n e l 2

U A R T C h a n n e l 3

U A R T C h a n n e l 5

U A R T C h a n n e l 6

In p u t s /O u tp u t s

U A R T C h a n n e l 7

U A R T C h a n n e l 0

In p u ts /O u t p u t s

M u lti- p u r p o s e

•

2 5 6 - b y t e R X F IF O

2 5 6 - b y t e T X F IF O

6 4 - b y t e R X F IF O

6 4 -

FAX (510) 668-7017

6 4 - b y t e T X F IF O

T X & R X

- p u r p o s e

E N D E C

R T S # [ 3 : 0 ]

D T R # [ 3 :0 ]

T X [ 3 : 0 ]

T X [ 7 : 0 ]

M P IO [ 1 5 : 0 ]

R I# [ 3 : 0 ]

T M R C K

D S R # [3 :0 ]

D C D # [ 3 : 0 ]

C T S # [3 :0 ]

R X [ 3 : 0 ]

R X [ 7 :0 ]

XR17V354

•

www.exar.com

REV. P1.0.2

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