GT3200-JD SMSC [SMSC Corporation], GT3200-JD Datasheet - Page 23
![no-image](/images/no-image-200.jpg)
GT3200-JD
Manufacturer Part Number
GT3200-JD
Description
USB2.0 PHY IC
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.GT3200-JD.pdf
(48 pages)
- Current page: 23 of 48
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USB2.0 PHY IC
Datasheet
Chapter 7 Functional Overview
SMSC GT3200, SMSC USB3250
7.1
Figure 2.1 Block Diagram on page 7
the functions is described in detail below.
The PartNumber support two modes of operation. See
interface.
Modes of Operation
8-bit unidirectional mode. Selected when DATABUS16_8 = 0. CLKOUT runs at 60MHz. The 8-
bit transmit data bus uses the lower 8 bits of the DATA bus (ie, TXDATA[7:0] = DATA[7:0]). The
8-bit receive data bus uses the upper 8 bits of the DATA bus (ie, RXDATA[7:0] = DATA[15:8]).
16-bit bidirectional mode. Selected when DATABUS16_8 = 1. CLKOUT runs at 30MHz. An
additional signal (VALIDH) is used to identify whether the high byte of the respective 16-bit data
word is valid. The full 16-bit DATA bus is used for transmit and receive operations.
is asserted, then the DATA[15:0] bus accepts transmit data from the SIE. If TXVALID is deasserted,
then the DATA[15:0] bus presents received data to the SIE. VALIDH is undefined when
DATABUS16_8 = 0 (8-bit mode).
DATASHEET
shows the functional block diagram of the PartNumber. Each of
23
Figure 7.1
for a block diagram of the digital
Revision 1.5 (03-24-06)
If TXVALID
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