Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 03/05/2024 Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

Signal Description

Testability Signals

Signal Name

Type

Description

Processor JTAG Signals

PROC_​JTAG_​TCK

I

Test Clock Input (TCK): The test clock input provides the clock for the JTAG test logic.

PROC_​JTAG_​TMS

I

Test Mode Select (TMS): The signal is decoded by the Test Access Port (TAP) controller to control test operations.

PROC_​JTAG_​TDI

I

Test Data Input (TDI): Serial test instructions and data is received by the test logic at TDI.

PROC_​JTAG_​TDO

O

Test Data Output (TDO): TDO is the serial output for test instructions and data from the test logic defined in this standard.

PROC_​JTAG_​TRST#

I

Test Reset(TRST): Resets the Test Access Port (TAP) logic. This signal should be driven low during power-on Reset.

DBG_​PMODE

O

ITP Power Mode Indicator. This signal is used to transmit processor and power/reset information to the Debugger.

PRDY# O Probe Mode Ready: PRDY# is a processor output used by debug tools to determine processor debug readiness.
PREQ# I Probe Mode Request: PREQ# is used by debug tools to request debug operation of the processor.
Boundary Scan Sideband Signals
GPP_​D23/BSSB_​LS0_​TX/USB-C_​GPP_​D23 I/O

BSSB_​LS_​TX: Boundary Scan Sideband Low Speed Transmit for debug purposes

GPP_​D22/BSSB_​LS0_​RX/USB-C_​GPP_​D22 I/O

BSSB_​LS_​RX: Boundary Scan Sideband Low Speed Receive for debug purposes

Breakpoint and Performance Monitor Signals
BPM[0] I/O Breakpoint and Performance Monitor Signals(BPM): Outputs from the processor that indicate the status of breakpoints and programmable counters used for monitoring processor performance.
BPM[1] I/O Breakpoint and Performance Monitor Signals(BPM): Outputs from the processor that indicate the status of breakpoints and programmable counters used for monitoring processor performance.
BPM[2] I/O Breakpoint and Performance Monitor Signals(BPM): Outputs from the processor that indicate the status of breakpoints and programmable counters used for monitoring processor performance.
BPM[3] I/O Breakpoint and Performance Monitor Signals(BPM): Outputs from the processor that indicate the status of breakpoints and programmable counters used for monitoring processor performance.
Boot Halt Signal
BOOTHALT# I/O Boot Halt : This signal is used for platform boot halt. Supports 1.8 V only.