Motor Control board DIM Connection Viewer

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Interactive browser of every signal that crosses the 120-pin MCS DIM connector between a Motor Control DIM card (the MCU board) and a motor-control baseboard — built for MPLAB Device Blocks developers wiring a Simulink model to a given DIM + baseboard.

🧩 Looking for other boards? This viewer covers only the Motor Control DIM family. For the family-agnostic, board-first view across all Microchip dsPIC / PIC32A boards — Curiosity Nano, standalone dev boards (LVMC, MCSK, …), MCLV-2 + PIM, the Curiosity Platform
GP DIM and the Digital-Power boards, in addition to the MCS DIMs shown here — use the newer Microchip dsPIC / PIC32A Board Connections page.

Open the viewer

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How to read a pin card

Each of the 120 DIM pins is one card, grouped into colour-coded category sections (PWM, ANA, QEI, HAL, FLT, PFC, DBG, COM, LED, BTN, XPRO1, XPRO2, PWR, NC, …). The section header names and colours the category, so there is no separate on-page legend.

Card area	Meaning
Left	The pin’s active function + bare port (e.g. `PWM1H` / `RB14`), with the remaining multiplexed functions in grey
Right (top)	Baseboard signal on that DIM pin (e.g. `M1_PWM_AH`)
Right (mid)	`DIM:NNN` — the DIM edge-connector pin, and (for expansion pins) `XPRO1:7` the Xplained-Pro connector pin
Right (bottom)	`MCU:N` — the MCU package pin behind it

A first “DIM” section summarises the board itself, not connector pins: the MCU identity (part, order code, package, Flash / RAM / speed / V_DD), the on-DIM 8 MHz clock (an active oscillator on OSCI/CLKI — External Clock mode, not a 2-pin crystal), the general-purpose LED LD2, and the ICSP/J2 programming pins (MCLR / PGD / PGC).

Useful interactions

Search box (top sub-bar) — filter cards by signal, pin, function or port. Supports wildcards: * = any text, ? = any single character (e.g. PWM*H, M1_I?). Next to it the chip characteristics (Flash / RAM / speed / V_DD) and the pin-count stats.
Hover any pin card to see the full pin signature (all PPS / AD / CVD / CMP tags) plus its alternate routings and any DNP-rework note.
Sort within category — by Function, DIM pin, MCU pin, or Connector pin (XPRO1 then XPRO2).
Show alternate (0 Ω) routings — reveals secondary routes; an alternate flagged rework is DNP and needs a board modification (move/add 0 Ω resistors, often to switch to an external op-amp) before it can be used.
Highlight motor-control-essential — frames the PWM / current / voltage / Hall / QEI / fault (plus LED & button) signals and dims the rest, for sanity-checking a control-loop wiring.
The DIM and Baseboard dropdowns each carry a ↗ link to the Microchip product page; the selected view is encoded in the URL (the address-bar link is shareable).

Microchip dsPIC / PIC32A Board Connections — the family-agnostic successor to this viewer: board-first, covers every dsPIC/PIC32A board (not just MCS DIMs), same MCS DIM data shown here plus Curiosity Nano, standalone boards, MCLV-2 + PIM, Curiosity Platform + GP DIM and the Digital-Power boards.
mchp-board-dim-mapping skill — full methodology for maintaining the spreadsheet and adding new DIMs. (In-repo at .pi/skills/mchp-board-dim-mapping/SKILL.md; not served by Hugo.)
Motor Control Guide — high-level overview of the MCHP motor-control ecosystem.
Block Reference → PWM HS FEP — the PWM block that drives the inverter pins visible in this viewer.
Microchip Motor Control landing page — product-level information and development kits.

Data-source details

The embedded data is assembled from four authoritative inputs:

Motor Control DIM-Pin Mapping.xlsx — the Pin-DIM, DIM-Pin, and Alternates tabs
MCS DIM Info Sheets on Confluence (space MCU16APP) — for DNP / alternate-path remarks
Per-chip datasheets — for the pin-name signatures shown on hover
MCHP_ChipDef.mat — for cross-checking that every MCU pin mentioned actually exists on the target silicon

The extraction pipeline lives at Claude_Sandbox/boards/ in the repository; regeneration is a manual step (not part of build.sh) because it reads Confluence directly.

Known limitations

Date-stamped snapshot. A commit to the spreadsheet or the Confluence sheets after 2026-06-16 will not automatically propagate here; the tool must be regenerated.
Single baseboard pair only. Only MCLV-48V-300W and MCHV-230VAC-1.5kW are bundled today. Adding a new baseboard means extending the generator, not just dropping a new JSON.
Read-only. There is no “export schematic” button — this is a lookup tool, not a CAD integration.
Browser-only. Works in any modern desktop browser (Chrome, Edge, Firefox, Safari). Not tested on mobile; the 120-row grid is hard to read on a narrow screen.

Feedback

Found a discrepancy with the spreadsheet? Email Simulink_Support@microchip.com .