Intel Z670 AY80609007293AA Data Sheet
Product codes
AY80609007293AA
Signal Descriptions
16
Datasheet
Signal
Direction
Type
Description
PWRMODE[2:0]
I
CMOS
Power mode: The chipset is expected to sequence Processor
through various states using the POWERMODE[] pins to
facilitate cold reset, and warm reset.
BCLK_P/N
I
CMOS
Reference clock: Differential 100 MHz.
2.1.6
Debug and Miscellaneous Signals
Table 2-8. Debug and Miscellaneous Signals
Signal
Direction
Type
Description
BPM[3:0]#
I/O
AGTL+
Break/perf monitor: Various debug input and output
functions.
PRDY#
I/O
AGTL+
Probe mode ready: The processor’s response to a PRDY#
assertion. This signal indicates that the processor is in probe
mode. Input is unused.
PREQ#
I/O
AGTL+
Probe mode request: Assertion is a request for the
processor to enter probe mode. Processor will respond with
PRDY# assertion once it has entered. PREQ# can be enabled
to cause the processor to break from C4 and C6. Internal
51 Ω pull up, so no external pull-up required.
TCK
I
CMOS
Processor JTAG test clock: This signal provides the clock
input for the processor Test Bus (also known as the Test
Access Port). Requires an external 51 Ω resistor to Vss.
TDI
I
CMOS
Processor JTAG test data input: This signal transfers
serial test data into the processor. TDI provides the serial
input needed for JTAG specification support. Requires an
external 51 Ω resistor to V
CCP
.
TDO
O
OD
Processor JTAG test data output: This signal transfers
serial test data out of the processor. TDO provides the serial
output needed for JTAG specification support. Requires an
external 51 Ω resistor to V
CCP
.
TMS
I
CMOS
Processor JTAG test mode select: A JTAG specification
support signal used by debug tools. Requires an external 51
Ω
resistor to V
CCP
.
TRST#
I
CMOS
Processor JTAG test reset: Asynchronously resets the Test
Access Port (TAP) logic. TRST# must be driven asserted
(low) during processor power on reset.
Processor has an internal 51 Ω pull-up to V
Processor has an internal 51 Ω pull-up to V
CCP
, unlike the
Pentium M processor, the Intel® Core™2 processor, and the
Intel® Atom™ Z5xx processor. The Processor pull-up
matches the Intel® Pentium® 4 processor and the IEEE
specification.
RSVD
These pins should be treated as no connection (NC).