Microchip Technology KSZ9692PBI

Overview

KSZ9692PBI from Microchip Technology is a highly integrated ARM922T-based System-on-Chip (SoC) networking controller featuring a 250 MHz processor core, dual Gigabit Ethernet MACs (MII/RGMII), PCI 2.3 interface, and dual USB 2.0 ports with integrated PHYs - designed for residential gateways and VoIP systems requiring embedded Linux or WinCE support.

For engineers reviewing the KSZ9692PBI datasheet, KSZ9692PBI pinout, KSZ9692PBI application, or KSZ9692PBI equivalent, this SoC delivers verified hardware-accelerated IPv4/IPv6 TCP/UDP checksum offload, dedicated DMA channels per Ethernet/USB/PCI interface, and configurable DDR memory controller supporting up to 128 MB at 200 MHz clock (400 Mbps data rate).

Technical Context

The KSZ9692PBI implements an AMBA AHB 2.0 system bus running at up to 166 MHz, with the ARM922T core acting as master for configuration of DDR, NAND, Ethernet, USB, and PCI peripherals. Its APB bridge connects UARTs, timers, GPIO, I²C, SPI, and I²S peripherals, all operating under programmable clock domains independent of the CPU core.

It integrates two dedicated DDR differential clock drivers compliant with JEDEC JESD82-1, enabling glueless DDR interface operation with SSTL_2 I/Os; the DDR controller supports 32-bit width, 12-column/14-row addressing, and configurable RAS/CAS timing - distinct from its KSZ9692XPB sibling which omits SDIO and has single-master PCI arbitration.

Key Specifications

Pinout & Package

The KSZ9692PBI is housed in a 324-pin PBGA package (15 mm × 15 mm, 0.8 mm pitch) with thermal pad, as confirmed in Microchip DS00003073A-page 43. Pin functions are defined across four functional groups: DDR interface (DQ[31:0], DQS[3:0], ADDR[14:0], BA[2:0], CK/CK#, CKE, CS#, RAS#, CAS#, WE#), Ethernet (TXD[3:0], RXD[3:0], TX_CTL, RX_CTL, MDIO, MDC), USB (D+/D− pairs for both ports), and system control (RESET#, CLKIN, nBOOT, nCS[2:0]).

Key Features

Applications

Equivalent & Alternatives

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

Compared with KSZ9692XPBI, the KSZ9692PBI adds SDIO and three-master PCI arbitration at identical core/peripheral performance; versus MPC8360EVRAGDB, it trades raw packet-processing throughput for higher peripheral integration, lower power, and Linux BSP maturity - making it preferable for volume SOHO and VoIP platforms.

Availability

KSZ9692PBI is available at Aetrix Electronics and suitable for residential gateways, VoIP systems, and industrial control gateways requiring stable component supply, long-term lifecycle support, and qualified Linux/WinCE BSP availability.

Supply support for KSZ9692PBI 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 company specializing in microcontrollers, analog devices, and connectivity solutions for embedded systems.

The KSZ9692PBI belongs to Microchip's KSZ9692 family of integrated networking SoCs, engineered specifically for cost-sensitive, high-bandwidth residential and small-office networking applications with Linux/WinCE OS support.

FAQ

What operating systems are officially supported on the KSZ9692PBI?

The KSZ9692PBI is validated with Linux-based SOHO router packages, Windows CE BSP, and OpenWrt - all provided in Microchip's Software Evaluation Kit. The integrated MMU and 250 MHz ARM922T core enable full process isolation and memory protection required by these OSes. No vendor-specific hypervisor or real-time OS support is documented for KSZ9692PBI.

Does the KSZ9692PBI support hardware-accelerated IPv6 packet processing?

Yes, the KSZ9692PBI supports hardware-accelerated IPv6 TCP/UDP checksum generation in transmit mode and error detection in receive mode via dedicated register fields in the LAN/WAN MAC DMA control registers. It also supports up to eight IPv6 source/destination IP-based ACL filtering rules - confirmed in DS00003073A Section 2.8.5.

What is the maximum DDR memory capacity supported by the KSZ9692PBI?

The KSZ9692PBI DDR controller supports up to 128 MB of addressable space using 12 column and 14 row address lines, compatible with DDR densities up to 1 Gb and data widths of x8 or x16. This is implemented via a 32-bit data bus with JEDEC-compliant SSTL_2 I/Os and integrated differential clock drivers.

Can the KSZ9692PBI operate in both PCI host and guest modes?

Yes, the KSZ9692PBI's PCI interface is configurable as either host bridge (where the ARM922T acts as system master) or guest device (where an external CPU controls the KSZ9692PBI via PCI). In host mode, its on-chip arbiter supports up to three external PCI masters; in guest mode, the arbiter is disabled per DS00003073A Section 2.7.

Is SDIO functionality available on all KSZ9692PBI units?

Yes, SDIO/SD host controller functionality is present and fully operational on all KSZ9692PBI units, as explicitly stated in the datasheet title page and Section 2.5 ("for KSZ9692PB only"). This distinguishes it from the KSZ9692XPBI variant, which omits SDIO. The KSZ9692PBI supports SD Host Controller Standard v1.0, SDIO v1.0, and MMC v3.31.