SAF1761BE/V1,557 NXP Semiconductors, SAF1761BE/V1,557 Datasheet - Page 15

• Manufacturer Part Number: SAF1761BE/V1,557
• Manufacturer: NXP Semiconductors

Specifications of SAF1761BE/V1,557

• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
SAF1761_1
Product data sheet
7.1.1 Internal clock scheme and port selection
The SAF1761 has three ports.
Fig 3.
Fig 4.
Internal hub
SAF1761 clock scheme
XOSC
Rev. 01 — 18 November 2009
PLL 12 MHz IN
PORT1
Figure 4
AND POLLING USING
INTERNAL HUB (TT)
ENUMERATION
ACTUAL PTDs
ROOT HUB
PORTSC1
PORT2
EHCI
PORT 2
PORT 3
PORT 1
shows the internal clock scheme of the SAF1761.
ATX
ATX
ATX
peripheral clock:
PORT3
host clock:
48 MHz,
30 MHz,
48 MHz,
30 MHz,
60 MHz
60 MHz
Hi-Speed USB OTG controller
EXTERNAL
PORTS
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PERIPHERAL
DIGITAL
CORE
CORE
CORE
HOST
SAF1761
© NXP B.V. 2009. All rights reserved.
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