Microchip Technology KSZ9692PB

Overview

KSZ9692PB from Microchip Technology is a highly integrated ARM922T-based SoC networking controller featuring a 250 MHz processor core, dual Gigabit Ethernet MACs (MII/RGMII), PCI 2.3 interface, dual USB 2.0 ports with integrated PHY, and SDIO/SD host controller - all in a single chip for residential gateways and VoIP systems.

For engineers reviewing the KSZ9692PB datasheet, KSZ9692PB pinout, KSZ9692PB application, or KSZ9692PB equivalent, key selection criteria include its 250 MHz ARM922T core, DDR memory controller supporting 200 MHz clock (400 Mbps data rate), 32-bit PCI bus at 33/66 MHz, SDIO support (KSZ9692PB-only), and dual-Gb Ethernet with hardware IPv4/IPv6 checksum offload.

Technical Context

The KSZ9692PB implements an AMBA AHB 2.0 system bus running up to 166 MHz, with the ARM922T core as master, managing DDR, NAND, FLASH/SRAM, PCI, USB, Ethernet, and SDIO controllers via dedicated register ports. Its APB bridge connects UARTs, timers, GPIO, I²C, SPI, and I²S peripherals.

It integrates two independent DMA subsystems: one for high-throughput interfaces (Ethernet, USB, PCI, SDIO) with programmable bandwidth allocation, and another for ARM-to-DDR transfers. The DDR controller includes two JEDEC JESD82-1-compliant differential clock drivers and supports 32-bit x1Gb DDR devices at 200 MHz.

Key Specifications

Pinout & Package

The KSZ9692PB is housed in a 484-pin PBGA package (23 × 23 mm, 1.0 mm pitch), thermally enhanced with exposed thermal pad. Pin assignment is defined in DS00003073A Sections 3.0 and 6.0, with dedicated banks for DDR, PCI, Ethernet PHY, USB, SDIO, and general-purpose I/O.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar embedded networking controller applications.

Compared with KSZ9692XPB, the KSZ9692PB adds SDIO and triple PCI master support at higher cost and pin count; versus MPC8377E, it trades Power Architecture performance and telecom peripherals for lower power, smaller footprint, and integrated USB/SDIO - making it optimal for cost-sensitive, Linux-based SOHO networking.

Availability

KSZ9692PB is available at Aetrix Electronics and suitable for residential gateways, VoIP endpoints, and industrial control gateways requiring stable component supply across multi-year production cycles.

Supply support for KSZ9692PB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog, FPGA, and connectivity solutions for embedded systems.

The KSZ9692PB belongs to Microchip's KSZ9692 family of integrated networking SoCs, designed specifically to consolidate Ethernet switching, USB, PCI, and storage interfaces into a single low-power ARM9-based platform for cost-sensitive broadband and VoIP equipment.

FAQ

What is the maximum DDR memory bandwidth supported by the KSZ9692PB?

The KSZ9692PB DDR controller operates at up to 200 MHz clock frequency (400 Mbps data rate) with 32-bit data bus width, delivering a theoretical peak bandwidth of 1.6 GB/s. This is achieved using JEDEC JESD82-1-compliant internal clock drivers and supports DDR densities up to 1 Gb. The KSZ9692PB uses this bandwidth for simultaneous Ethernet packet buffering, USB streaming, and application code execution without contention.

Does the KSZ9692PB support IPv6 hardware acceleration?

Yes, the KSZ9692PB supports IPv6 hardware acceleration by generating TCP/UDP checksums for IPv6 packets in transmit path and detecting checksum errors in receive path - configurable per MAC port via LAN/WAN DMA control registers or packet-level descriptors. This offload applies to both unicast and multicast IPv6 traffic and is confirmed in DS00003073A Section 2.8.5. The KSZ9692PB does not perform IPv6 header validation or fragmentation.

Is the SDIO interface available on both KSZ9692PB and KSZ9692XPB variants?

No, the SDIO/SD host controller is exclusive to the KSZ9692PB. The KSZ9692XPB variant omits this peripheral entirely, as explicitly stated in DS00003073A Section 2.5 ("for KSZ9692PB only") and functional block diagrams (pages 7–8). This difference is reflected in pin count, package mapping, and datasheet feature tables. Designers requiring SDIO must use KSZ9692PB - no software or configuration workaround exists to enable it on KSZ9692XPB.

What are the Wake-on-LAN capabilities of the KSZ9692PB?

The KSZ9692PB supports full Wake-on-LAN via Magic Packet detection, link state change, and user-defined wake-up frames (up to four per port). It scans incoming frames for the 16× MAC address sequence preceded by six 0xFF bytes, operating in low-power D3 state while maintaining PHY link monitoring. The KSZ9692PB asserts system reset upon wake event and supports configurable filter masks - all documented in DS00003073A Section 2.8.3–2.8.4. No external components are needed beyond standard Ethernet magnetics.

Can the KSZ9692PB operate in both PCI host and guest bridge modes?

Yes, the KSZ9692PB supports both PCI host bridge mode (where the ARM922T acts as system host configuring other PCI devices) and guest bridge mode (where it appears as a PCI device to an external host CPU). Mode selection is controlled via strap pins and register configuration. In host mode, its integrated 3-master PCI arbiter manages bus ownership; in guest mode, the arbiter is disabled. This dual-mode capability is confirmed in DS00003073A Section 2.7 and applies identically to KSZ9692PB and KSZ9692XPB.