89HPES12N3
Data Sheet
12-lane 3-Port
PCI Express® Switch
®
Device Overview
Highly Integrated Solution
– Requires no external components
– Incorporates on-chip internal memory for packet buffering and
queueing
– Integrates 12 2.5 Gbps embedded SerDes, 8B/10B encoder/
decoder (no separate transceivers needed)
◆
Reliability, Availability, and Serviceability (RAS) Features
– Internal end-to-end parity protection on all TLPs ensures data
integrity even in systems that do not implement end-to-end
CRC (ECRC)
– Supports ECRC passed through
– Supports PCI Express Native Hot-Plug
• Compatible with Hot-Plug I/O expanders used on PC motherboards
– Supports Hot-Swap
◆ Power Management
– Supports PCI Power Management Interface specification,
Revision 1.1 (PCI-PM)
– Unused SerDes are disabled
– Supports Advanced Configuration and Power Interface Specification, Revision 2.0 (ACPI) supporting active link state
◆ Testability and Debug Features
– Built in SerDes Pseudo-Random Bit Stream (PRBS) generator
– Ability to read and write any internal register via the SMBus
– Ability to bypass link training and force any link into any mode
– Provides statistics and performance counters
◆
The 89HPES12N3 is a member of IDT’s PRECISE™ family of PCI
Express® switching solutions. The PES12N3 is a 12-lane, 3-port peripheral chip that performs PCI Express Base switching with a feature set
optimized for high performance applications such as servers, storage,
and communications/networking. It provides connectivity and switching
functions between a PCIe® upstream port and two downstream ports or
peer-to-peer switching between downstream ports.
Features
High Performance PCI Express Switch
– Three x4 ports with 12 PCI Express lanes total
– Delivers 6 GBps (48 Gbps) aggregate switching capacity
– Low latency cut-through switch architecture
– Supports 128 to 2048 byte maximum payload size
– Supports one virtual channel
– PCI Express Base specification Revision 1.0a compliant
◆ Flexible Architecture with Numerous Configuration Options
– Port arbitration schemes utilizing round robin or weighted
round robin algorithms
– Supports automatic per port link with negotiation (x4, x2, or x1)
– Supports static lane reversal on all ports
– Supports polarity inversion
– Supports locked transactions, allowing use with legacy software
– Ability to load device configuration from serial EEPROM
◆
Block Diagram
3-Port Switch Core
Frame Buffer
Scheduler
Scheduler
Transaction Layer
Transaction Layer
Transaction Layer
Data Link Layer
Data Link Layer
Data Link Layer
Multiplexer/Demultiplexer
Phy
Logical
Layer
Port
Arbitration
Route Table
Phy
Logical
Layer
Phy
Logical
Layer
Phy
Logical
Layer
SerDes SerDes SerDes SerDes
Multiplexer/Demultiplexer
Phy
Logical
Layer
Multiplexer/Demultiplexer
Phy
Logical
Layer
Phy
Logical
Layer
Phy
Logical
Layer
SerDes SerDes SerDes
SerDes
SerDes SerDes SerDes SerDes
Phy
Logical
Layer
Phy
Logical
Layer
Phy
Logical
Layer
Phy
Logical
Layer
12 PCI Express Lanes
One x4 Upstream Port and Two x4 Downstream Ports
Figure 1 Internal Block Diagram
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
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DSC 6920
IDT 89HPES12N3 Data Sheet
Two SMBus Interfaces
– Slave interface provides full access to all software-visible
registers by an external SMBus master
– Master interface provides connection for an optional serial
EEPROM used for initialization
– Master interface is also used by an external Hot-Plug
I/O expander
– Master and slave interfaces may be tied together so the
PES12N3 can act as both master and slave
◆
8 General Purpose Input/Output pins
◆
Packaged in 19x19mm 324 ball BGA with 1mm ball spacing
◆
Processor
North
Bridge
PES12N3
PES12N3
Memory
Memory
Memory
Memory
PES12N3
Product Description
Utilizing standard PCI Express interconnect, the PES12N3 provides
the most efficient high-performance I/O connectivity solution for applications requiring high throughput, low latency, and simple board layout
with a minimum number of board layers. It provides 6 GBps (48 Gbps) of
aggregated, full-duplex switching capacity through 12 integrated serial
lanes, using proven and robust IDT technology. Each lane provides 2.5
Gbps of bandwidth in both directions and is fully compliant with PCI
Express Base specification 1.0a.
PCI Express
Slots
I/O
10GbE
I/O
10GbE
I/O
SATA
I/O
SATA
Figure 2 I/O Expansion Application
The PES12N3 is based on a flexible and efficient layered architecture. The PCI Express layer consists of SerDes, Physical, Data Link and
Transaction layers in compliance with PCI Express Base specification
Revision 1.0a. The PES12N3 can operate either as a store and forward
or cut-through switch and is designed to switch memory and I/O transactions. It supports eight Traffic Classes (TCs) and one Virtual Channel
(VC) with sophisticated resource management. This includes system
selectable algorithms such as round robin, weighted round-robin, and
strict priority schemes guaranteeing bandwidth allocation and/or latency
for critical traffic classes in applications such as high throughput Quad/
Dual Gigabit I/Os, SATA controllers, and Fibre Channel HBAs.
Switch Configuration
The PES12N3 is a three port switch that contains 12 PCI Express
lanes. Each of the three ports is statically allocated 4 lanes with ports
labeled as A, B and C. Port A is always the upstream port while ports B
and C are always downstream ports. The switch operating mode, as well
as an optional initialization from a serial EEPROM, is selected via the
Switch Mode (SWMODE[3:0]) inputs.
During link training, link width is automatically negotiated. Each
PES12N3 port is capable of independently negotiating to a x4, x2 or x1
width. Thus, the PES12N3 may be used in virtually any three port switch
configuration (e.g., {x4, x4, x4}, {x4, x2, x1}, etc.). The PES12N3
supports static lane reversal. For example, lane reversal for upstream
port A may be configured by asserting the PCI Express Port A Lane
Reverse (PEALREV) input signal or through serial EEPROM or SMBus
initialization. Lane reversal for ports B and C may be enabled via a
configuration space register, serial EEPROM, or the SMBus.
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IDT 89HPES12N3 Data Sheet
Pin Description
The following tables list the functions of the pins provided on the PES12N3. Some of the functions listed may be multiplexed onto the same pin.
The active polarity of a signal is defined using a suffix. Signals ending with an “N” are defined as being active, or asserted, when at a logic zero (low)
level. All other signals (including clocks, buses, and select lines) will be interpreted as being active, or asserted, when at a logic one (high) level.
Signal
Type
Name/Description
PEALREV
I
PCI Express Port A Lane Reverse. When this bit is asserted, the lanes of
PCI Express Port A are reversed. This value may be overridden by modifying the value of the PALREV bit in the PA_SWCTL register.
PEARP[3:0]
PEARN[3:0]
I
PCI Express Port A Serial Data Receive. Differential PCI Express receive
pairs for port A.
PEATP[3:0]
PEATN[3:0]
O
PCI Express Port A Serial Data Transmit. Differential PCI Express transmit pairs for port A
PEBLREV
I
PCI Express Port B Lane Reverse. When this bit is asserted, the lanes of
PCI Express Port B are reversed. This value may be overridden by modifying the value of the PBLREV bit in the PA_SWCTL register.
PEBRP[3:0]
PEBRN[3:0]
I
PCI Express Port B Serial Data Receive. Differential PCI Express receive
pairs for port B.
PEBTP[3:0]
PEBTN[3:0]
O
PCI Express Port B Serial Data Transmit. Differential PCI Express transmit pairs for port B
PECLREV
I
PCI Express Port C Lane Reverse. When this bit is asserted, the lanes of
PCI Express Port C are reversed. This value may be overridden by modifying the value of the PCLREV bit in the PA_SWCTL register.
PECRP[3:0]
PECRN[3:0]
I
PCI Express Port C Serial Data Receive. Differential PCI Express receive
pairs for port C.
PECTP[3:0]
PECTN[3:0]
O
PCI Express Port C Serial Data Transmit. Differential PCI Express transmit pairs for port C
PEREFCLKP[1:0]
PEREFCLKN[1:0]
I
PCI Express Reference Clock. Differential reference clock pair input. This
clock is used as the reference clock by on-chip PLLs to generate the clocks
required for the system logic and on-chip SerDes. The frequency of the differential reference clock is determined by the REFCLKM signal.
REFCLKM
I
PCI Express Reference Clock Mode Select. These signals select the frequency of the reference clock input.
0x0 - 100 MHz
0x1 - 125 MHz
Table 1 PCI Express Interface Pins
Signal
Type
Name/Description
MSMBADDR[4:1]
I
Master SMBus Address. These pins determine the SMBus address of the
serial EEPROM from which configuration information is loaded.
MSMBCLK
I/O
Master SMBus Clock. This bidirectional signal is used to synchronize
transfers on the master SMBus. This signal is active only when EEPROM
data is being loaded.
MSMBDAT
I/O
Master SMBus Data. This bidirectional signal is used for data on the master SMBus.
Table 2 SMBus Interface Pins (Part 1 of 2)
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IDT 89HPES12N3 Data Sheet
Signal
Type
Name/Description
SSMBADDR[5,3:1]
I
SSMBCLK
I/O
Slave SMBus Clock. This bidirectional signal is used to synchronize transfers on the slave SMBus.
SSMBDAT
I/O
Slave SMBus Data. This bidirectional signal is used for data on the slave
SMBus.
Slave SMBus Address. These pins determine the SMBus address to
which the slave SMBus interface responds.
Table 2 SMBus Interface Pins (Part 2 of 2)
Signal
Type
Name/Description
GPIO[0]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
GPIO[1]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
GPIO[2]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: IOEXPINTN
Alternate function pin type: Input
Alternate function: Hot-Plug I/O expander interrupt input
GPIO[3]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: PAABN
Alternate function pin type: Input
Alternate function: Port A attention button Input
GPIO[4]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: PAAIN
Alternate function pin type: Output
Alternate function: Port A attention indicator output
GPIO[5]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Alternate function pin name: PAPIN
Alternate function pin type: Output
Alternate function: Port A power indicator output
GPIO[6]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
GPIO[7]
I/O
General Purpose I/O.
This pin can be configured as a general purpose I/O pin.
Table 3 General Purpose I/O Pins
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IDT 89HPES12N3 Data Sheet
Signal
Type
Name/Description
CCLKDS
I
Common Clock Downstream. When the CCLKDS pin is asserted, it indicates that a common clock is being used between the downstream device
and the downstream port.
CCLKUS
I
Common Clock Upstream. When the CCLKUS pin is asserted, it indicates that a common clock is being used between the upstream device and
the upstream port.
MSMBSMODE
I
Master SMBus Slow Mode. The assertion of this pin indicates that the
master SMBus should operate at 100 KHz instead of 400 KHz. This value
may not be overridden.
PERSTN
I
Fundamental Reset. Assertion of this signal resets all logic inside the
PES12N3 and initiates a PCI Express fundamental reset.
RSTHALT
I
Reset Halt. When this signal is asserted during a PCI Express fundamental
reset, the PES12N3 executes the reset procedure and remains in a reset
state with the Master and Slave SMBuses active. This allows software to
read and write registers internal to the device before normal device operation begins. The device exits the reset state when the RSTHALT bit is
cleared in the PA_SWCTL register by an SMBus master.
TSTRSVD
I
Reserved. Reserved for future test mode. Must be tied to ground.
SWMODE[3:0]
I
Switch Mode. These configuration pins determine the PES12N3 switch
operating mode.
0x0 - Transparent mode
0x1 -Transparent mode with serial EEPROM initialization
0x2 through 0x7 - Reserved
0x8 - 10-bit loopback test mode
0x9 - Reserved
0xA - Internal pseudo random bit stream self-test test mode
0xB - External pseudo random bit stream self-test test mode
0xC - Reserved
0xD - SerDes broadcast test mode
0xE - 0xF Reserved
Table 4 System Pins
Signal
Type
Name/Description
JTAG_TCK
I
JTAG Clock. This is an input test clock used to clock the shifting of data
into or out of the boundary scan logic or JTAG Controller. JTAG_TCK is
independent of the system clock with a nominal 50% duty cycle.
JTAG_TDI
I
JTAG Data Input. This is the serial data input to the boundary scan logic or
JTAG Controller.
Table 5 Test Pins (Part 1 of 2)
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IDT 89HPES12N3 Data Sheet
Signal
Type
Name/Description
JTAG_TDO
O
JTAG Data Output. This is the serial data shifted out from the boundary
scan logic or JTAG Controller. When no data is being shifted out, this signal
is tri-stated.
JTAG_TMS
I
JTAG Mode. The value on this signal controls the test mode select of the
boundary scan logic or JTAG Controller.
JTAG_TRST_N
I
JTAG Reset. This active low signal asynchronously resets the boundary
scan logic and JTAG TAP Controller. An external pull-up on the board is
recommended to meet the JTAG specification in cases where the tester
can access this signal. However, for systems running in functional mode,
one of the following should occur:
1) actively drive this signal low with control logic
2) statically drive this signal low with an external pull-down on the board
Table 5 Test Pins (Part 2 of 2)
Signal
Type
Name/Description
VDDCORE
I
Core VDD. Power supply for core logic.
VDDIO
I
I/O VDD. LVTTL I/O buffer power supply.
VDDPE
I
PCI Express Digital Power. PCI Express digital power used by the digital
power of the SerDes.
VDDAPE
I
PCI Express Analog Power. PCI Express analog power used by the PLL
and bias generator.
VTTPE
I
PCI Express Termination Power.
VSS
I
Ground.
Table 6 Power and Ground Pins
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IDT 89HPES12N3 Data Sheet
Pin Characteristics
Note: Some input pads of the PES12N3 do not contain internal pull-ups or pull-downs. Unused inputs should be tied off to appropriate
levels. This is especially critical for unused control signal inputs which, if left floating, could adversely affect operation. Also, any input pin left
floating can cause a slight increase in power consumption.
Function
PCI Express Interface
SMBus
Type
Buffer
I/O
Type
Internal
Resistor
PEALREV
I
LVTTL
Input
pull-down
PEARN[3:0]
I
CML
Serial link
PEARP[3:0]
I
PEATN[3:0]
O
PEATP[3:0]
O
PEBLREV
I
LVTTL
Input
PEBRN[3:0]
I
CML
Serial link
PEBRP[3:0]
I
PEBTN[3:0]
O
PEBTP[3:0]
O
PECLREV
I
LVTTL
Input
PECRN[3:0]
I
CML
Serial link
PECRP[3:0]
I
PECTN[3:0]
O
PECTP[3:0]
O
PEREFCLKN[1:0]
I
PEREFCLKP[1:0]
I
LVPECL/
CML
Diff. Clock
Input
REFCLKM
I
LVTTL
Input
pull-down
MSMBADDR[4:1]
I
LVTTL
Input
pull-up
Pin Name
MSMBCLK
I/O
MSMBDAT
I/O
SSMBADDR[5,3:1]
General Purpose I/O
Notes
pull-down
pull-down
Refer to
Table 8
STI
I
Input
SSMBCLK
I/O
STI
SSMBDAT
I/O
GPIO[7:0]
I/O
LVTTL
Input,
High Drive
pull-up
pull-up
Table 7 Pin Characteristics (Part 1 of 2)
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IDT 89HPES12N3 Data Sheet
Function
System Pins
JTAG
Type
Buffer
I/O
Type
Internal
Resistor
CCLKDS
I
LVTTL
Input
pull-up
CCLKUS
I
pull-up
MSMBSMODE
I
pull-down
PERSTN
I
RSTHALT
I
pull-down
TSTRSVD
I
pull-down
SWMODE[3:0]
I
pull-up
JTAG_TCK
I
JTAG_TDI
I
JTAG_TDO
O
Low Drive
JTAG_TMS
I
STI
JTAG_TRST_N
I
Pin Name
LVTTL
STI
Notes
External pulldown
pull-up
pull-up
pull-up
pull-up
External pulldown
Table 7 Pin Characteristics (Part 2 of 2)
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IDT 89HPES12N3 Data Sheet
Logic Diagram — PES12N3
PEATP[0]
PEATN[0]
PEARP[1]
PEARN[1]
PEATP[1]
PEATN[1]
...
PEALREV
PEARP[0]
PEARN[0]
PEARP[3]
PEARN[3]
PEATP[3]
PEATN[3]
PEBLREV
PEBRP[0]
PEBRN[0]
PEBTP[0]
PEBTN[0]
PEBRP[1]
PEBRN[1]
PEBTP[1]
PEBTN[1]
...
PCI Express
Switch
SerDes Input
Port B
2
...
PCI Express
Switch
SerDes Input
Port A
2
PEREFCLKP
PEREFCLKN
REFCLKM
...
Reference
Clock
PEBRP[3]
PEBRN[3]
PES12N3
PECTP[0]
PECTN[0]
PECTP[1]
PECTN[1]
PECRP[1]
PECRN[1]
...
...
PECRP[3]
PECRN[3]
Master
SMBus Interface
Slave
SMBus Interface
System
Pins
MSMBADDR[4:1]
MSMBCLK
MSMBDAT
SSMBADDR[5,3:1]
SSMBCLK
SSMBDAT
PCI Express
Switch
SerDes Output
Port C
PECTP[3]
PECTN[3]
4
8
GPIO[7:0]
JTAG_TCK
JTAG_TDI
JTAG_TDO
JTAG_TMS
JTAG_TRST_N
4
TSTRSVD
MSMBSMODE
CCLKDS
CCLKUS
RSTHALT
PERSTN
SWMODE[3:0]
PCI Express
Switch
SerDes Output
Port B
PEBTP[3]
PEBTN[3]
PECLREV
PECRP[0]
PECRN[0]
PCI Express
Switch
SerDes Input
Port C
PCI Express
Switch
SerDes Output
Port A
VDDCORE
VDDIO
VDDPE
VDDAPE
VSS
4
General Purpose
I/O
JTAG Pins
Power/Ground
VTTPE
Figure 3 PES12N3 Logic Diagram
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IDT 89HPES12N3 Data Sheet
System Clock Parameters
Values based on systems running at recommended supply voltages and operating temperatures, as shown in Tables 12 and 13.
Parameter
Description
Min
RefclkFREQ
Input reference clock frequency range
100
RefclkDC2
Duty cycle of input clock
40
TR, TF
Rise/Fall time of input clocks
VSW
Differential input voltage swing4
Tjitter
Input clock jitter (cycle-to-cycle)
RT
Termination Resistor
Typical
50
0.6
Max
Unit
1251
MHz
60
%
0.2*RCUI
RCUI3
1.6
V
125
ps
110
Ohms
Table 8 Input Clock Requirements
1. The input clock frequency will be either 100 or 125 MHz depending on signal REFCLKM.
2. ClkIn must be AC coupled. Use 0.01 — 0.1 µF ceramic capacitors.
3.
RCUI (Reference Clock Unit Interval) refers to the reference clock period.
4. AC coupling required.
AC Timing Characteristics
Parameter
Description
Min1
Typical1
Max1
Units
399.88
400
400.12
ps
0.7
.9
PCIe Transmit
UI
Unit Interval
TTX-EYE
Minimum Tx Eye Width
TTX-EYE-MEDIAN-toMAX-JITTER
Maximum time between the jitter median and maximum
deviation from the median
TTX-RISE, TTX-FALL
D+ / D- Tx output rise/fall time
50
TTX- IDLE-MIN
Minimum time in idle
50
TTX-IDLE-SET-TO-
Maximum time to transition to a valid Idle after sending
an Idle ordered set
20
UI
IDLE
TTX-IDLE-TO-DIFF-
Maximum time to transition from valid idle to diff data
20
UI
UI
0.15
90
UI
ps
UI
DATA
TTX-IDLE-RCV-DET-
Max time spend in idle before initiating a RX detect
sequence
20
100
ms
MAX
TTX-SKEW
Transmitter data skew between any 2 lanes
500
1300
ps
400
400.12
ps
PCIe Receive
UI
Unit Interval
399.88
TRX-EYE (with jitter)
Minimum Receiver Eye Width (jitter tolerance)
0.4
UI
Table 9 PCIe AC Timing Characteristics (Part 1 of 2)
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IDT 89HPES12N3 Data Sheet
Max1
Units
Max time between jitter median & max deviation
0.3
UI
Unexpected Idle Enter Detect Threshold Integration Time
10
ms
Lane to lane input skew
20
ns
Parameter
Min1
Description
TRX-EYE-MEDIUM TO
Typical1
MAX JITTER
TRX-IDLE-DET-DIFFENTER TIME
TRX-SKEW
Table 9 PCIe AC Timing Characteristics (Part 2 of 2)
1. Minimum, Typical, and Maximum values meet the requirements under PCI Specification 1.0a
Signal
Symbol
Reference
Min Max Unit
Edge
Timing
Diagram
Reference
GPIO
GPIO[7:0]1
Tpw_13b2
None
50
—
ns
Table 10 GPIO AC Timing Characteristics
1. GPIO signals must meet the setup and hold times if they are synchronous or the minimum pulse width if
they are asynchronous.
2. The values for this symbol were determined by calculation, not by testing.
Signal
Symbol
Reference
Edge
Min
Max
Unit
Timing
Diagram
Reference
Tper_16a
none
50.0
—
ns
See Figure 4.
10.0
25.0
ns
2.4
—
ns
1.0
—
ns
—
20
ns
—
20
ns
25.0
—
ns
JTAG
JTAG_TCK
Thigh_16a,
Tlow_16a
JTAG_TMS1,
JTAG_TDI
JTAG_TDO
Tsu_16b
Thld_16b
Tdo_16c
Tdz_16c
JTAG_TRST_N
JTAG_TCK rising
JTAG_TCK falling
2
Tpw_16d2
none
Table 11 JTAG AC Timing Characteristics
1.
The JTAG specification, IEEE 1149.1, recommends that JTAG_TMS should be held at 1 while the signal applied at JTAG_TRST_N
changes from 0 to 1. Otherwise, a race may occur if JTAG_TRST_N is deasserted (going from low to high) on a rising edge of JTAG_TCK
when JTAG_TMS is low, because the TAP controller might go to either the Run-Test/Idle state or stay in the Test-Logic-Reset state.
2.
The values for this symbol were determined by calculation, not by testing.
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IDT 89HPES12N3 Data Sheet
Tlow_16a
Tper_16a
Thigh_16a
JTAG_TCK
Thld_16b
Tsu_16b
JTAG_TDI
Thld_16b
Tsu_16b
JTAG_TMS
Tdo_16c
Tdz_16c
JTAG_TDO
Tpw_16d
JTAG_TRST_N
Figure 4 JTAG AC Timing Waveform
Recommended Operating Supply Voltages
Symbol
Parameter
Minimum
Typical
Maximum
Unit
0.9
1.0
1.1
V
3.135
3.3
3.465
V
VDDCORE
Internal logic supply
VDDI/O
I/O supply except for SerDes LVPECL/CML
VDDPE
PCI Express Digital Power
0.9
1.0
1.1
V
VDDAPE
PCI Express Analog Power
0.9
1.0
1.1
V
VTTPE
PCI Express Serial Data Transmit
Termination Voltage
1.425
1.5
1.575
V
VSS
Common ground
0
0
0
V
Table 12 PES12N3 Operating Voltages
Recommended Operating Temperature
Grade
Temperature
Commercial
0°C to +70°C Ambient
Table 13 PES12N3 Operating Temperatures
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IDT 89HPES12N3 Data Sheet
Power-Up Sequence
This section describes the sequence in which various voltages must be applied to the part during power-up to ensure proper functionality. For the
PES12N3, the power-up sequence must be as follows:
1.
VDDI/O — 3.3V
2.
VDDCore, VDDPE, VDDAPE — 1.0V
3.
VTTPE — 1.5V
When powering up, each voltage level must ramp and stabilize prior to applying the next voltage in the sequence to ensure internal latch-up issues
are avoided. There are no maximum time limitations in ramping to valid power levels. The power-down sequence must be in the reverse order of the
power-up sequence.
Power Consumption
Typical power is measured under the following conditions: 25°C Ambient, 35% total link usage on all ports, typical voltages defined in Table 14.
Maximum power is measured under the following conditions: 70°C Ambient, 85% total link usage on all ports, maximum voltages defined in
Table 14.
All power measurements assume that the part is mounted on a 10 layer printed circuit board with 0 LFM airflow.
Number of
Connected Lanes:
Port-A/Port-B/Port-C
Core (Watts)
(1.0V supply)
PCIe Digital
(Watts)
(1.0V supply)
PCIe Analog
(Watts)
(1.0V supply)
PCIe Termination (Watts)
(1.5V supply)
I/O (Watts)
(3.3V supply)
Total (Watts)
Typ
Max
Typ
Max
Typ
Max
Typ
Max
Typ
Max
Typ
Max
1/1/1
0.52
0.67
0.27
0.36
0.13
0.16
0.11
0.13
0.01
0.01
1.04
1.33
4/1/1
0.56
0.76
0.47
0.58
0.19
0.21
0.22
0.26
0.01
0.01
1.44
1.81
4/4/4
0.65
0.89
0.68
0.81
0.21
0.25
0.38
0.51
0.01
0.01
1.92
2.47
Table 14 PES12N3 Power Consumption
13 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
DC Electrical Characteristics
Values based on systems running at recommended supply voltages, as shown in Table 12.
Note: See Table 7, Pin Characteristics, for a complete I/O listing.
I/O Type
Parameter
Serial Link
PCIe Transmit
Min1
Description
Typ1
Max1
Unit
800
1200
mV
-3
-4
dB
3.7
V
VTX-DIFFp-p
Differential peak-to-peak output voltage
VTX-DE-RATIO
De-emphasized differential output voltage
VTX-DC-CM
DC Common mode voltage
VTX-CM-ACP
RMS AC peak common mode output voltage
20
mV
VTX-CM-DC-
Abs delta of DC common mode voltage
between L0 and idle
100
mV
25
mV
delta
Abs delta of DC common mode voltage
between D+ and D-
VTX-Idle-DiffP
Electrical idle diff peak output
20
mV
VTX-RCV-Detect
Voltage change during receiver detection
600
mV
RLTX-DIFF
Transmitter Differential Return loss
12
dB
RLTX-CM
Transmitter Common Mode Return loss
6
dB
ZTX-DEFF-DC
DC Differential TX impedance
80
100
120
Ω
ZOSE
Single ended TX Impedance
40
50
60
Ω
Transmitter Eye
Diagram
TX Eye Height (De-emphasized bits)
505
650
mV
Transmitter Eye
Diagram
TX Eye Height (Transition bits)
800
950
mV
VRX-DIFFp-p
Differential input voltage (peak-to-peak)
175
VRX-CM-AC
Receiver common-mode voltage for AC
coupling
RLRX-DIFF
Receiver Differential Return Loss
15
dB
RLRX-CM
Receiver Common Mode Return Loss
6
dB
ZRX-DIFF-DC
Differential input impedance (DC)
80
100
120
Ω
ZRX-COMM-DC
Single-ended input impedance
40
50
60
Ω
ZRX-COMM-HIGH-
200k
350k
Z-DC
Powered down input common mode
impedance (DC)
VRX-IDLE-DET-
Electrical idle detect threshold
65
Input Capacitance
1.5
active-idle-delta
VTX-CM-DC-line-
-0.1
1
Conditions
PCIe Receive
1200
mV
150
mV
Ω
175
mV
DIFFp-p
PCIe REFCLK
CIN
—
pF
Table 15 DC Electrical Characteristics (Part 1 of 2)
14 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
I/O Type
Min1
Typ1
Max1
Unit
Conditions
IOL
—
2.5
—
mA
VOL = 0.4v
IOH
—
-5.5
—
mA
VOH = 1.5V
IOL
—
12.0
—
mA
VOL = 0.4v
IOH
—
-20.0
—
mA
VOH = 1.5V
Parameter
Description
Other I/Os
LOW Drive
Output
High Drive
Output
Schmitt Trigger Input
(STI)
VIL
-0.3
—
0.8
V
—
VIH
2.0
—
VDDIO +
0.5
V
—
Input
VIL
-0.3
—
0.8
V
—
VIH
2.0
—
VDDIO +
0.5
V
—
Capacitance
CIN
—
—
8.5
pF
—
Leakage
Inputs
—
—
+ 10
μA
VDDI/O (max)
I/OLEAK W/O
Pull-ups/downs
—
—
+ 10
μA
VDDI/O (max)
I/OLEAK WITH
Pull-ups/downs
—
—
+ 80
μA
VDDI/O (max)
Table 15 DC Electrical Characteristics (Part 2 of 2)
1.
Minimum, Typical, and Maximum values meet the requirements under PCI Specification 1.0a.
15 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Package Pinout — 324-BGA Signal Pinout for PES12N3
The following table lists the pin numbers and signal names for the PES12N3 device.
Pin
Function
Alt
Pin
Function
Alt
Pin
Function
Alt
Pin
Function
A1
VSS
E10
VDDPE
K1
VDDCORE
P10
VDDIO
A2
VSS
E11
VSS
K2
VSS
P11
VDDIO
A3
PEARP03
E12
VDDPE
K3
VTTPE
P12
VDDIO
A4
VDDCORE
E13
VSS
K4
VDDCORE
P13
VDDIO
A5
PEATN03
E14
VDDCORE
K5
VDDPE
P14
VDDIO
A6
VDDCORE
E15
VDDAPE
K6
VSS
P15
VSS
A7
PEATP02
E16
VSS
K7
VSS
P16
VTTPE
A8
VDDCORE
E17
PECTP03
K8
VSS
P17
VSS
A9
PEARN02
E18
PECTN03
K9
VSS
P18
VDDCORE
A10
VDDCORE
F1
VDDCORE
K10
VSS
R1
PEBTN03
A11
PEARP01
F2
VSS
K11
VSS
R2
PEBTP03
A12
VDDCORE
F3
VDDCORE
K12
VSS
R3
VSS
A13
PEATP01
F4
VDDAPE
K13
VSS
R4
VDDIO
A14
VDDCORE
F5
VSS
K14
VSS
R5
VSS
A15
VDDCORE
F6
VDDCORE
K15
VDDPE
R6
VDDCORE
A16
PEATN00
F7
VSS
K16
VTTPE
R7
MSMBDAT
A17
VSS
F8
VDDCORE
K17
VSS
R8
SSMBADDR_5
A18
VSS
F9
VSS
K18
VDDCORE
R9
PEALREV
B1
VDDCORE
F10
VDDCORE
L1
PEBRN02
R10
SWMODE_2
B2
VDDCORE
F11
VSS
L2
PEBRP02
R11
RSTHALT
B3
PEARN03
F12
VSS
L3
VSS
R12
GPIO_04
B4
VSS
F13
VDDPE
L4
VDDPE
R13
VDDCORE
B5
PEATP03
F14
VSS
L5
VSS
R14
VSS
B6
VSS
F15
VDDIO
L6
VDDCORE
R15
VDDIO
B7
PEATN02
F16
VSS
L7
VDDCORE
R16
VSS
B8
VSS
F17
VSS
L8
VDDCORE
R17
PECTP00
B9
PEARP02
F18
VDDCORE
L9
VDDCORE
R18
PECTN00
B10
VSS
G1
PEBTP01
L10
VDDCORE
T1
VDDCORE
B11
PEARN01
G2
PEBTN01
L11
VDDCORE
T2
VSS
B12
VSS
G3
VSS
L12
VDDCORE
T3
VSS
B13
PEATN01
G4
VDDPE
L13
VDDCORE
T4
JTAG_TCK
B14
VSS
G5
VDDAPE
L14
VSS
T5
JTAG_TDO
B15
VSS
G6
VSS
L15
VDDPE
T6
MSMBADDR_1
B16
PEATP00
G7
VSS
L16
VSS
T7
MSMBCLK
Alt
1
Table 16 PES12N3 324-pin Signal Pin-Out (Part 1 of 3)
16 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Pin
Function
Alt
Pin
Function
Alt
Pin
Function
Alt
Pin
Function
B17
VDDCORE
G8
VDDIO
L17
PECRP01
T8
SSMBADDR_2
B18
VDDCORE
G9
VSS
L18
PECRN01
T9
CCLKDS
C1
PEBRP00
G10
VDDIO
M1
VDDCORE
T10
SWMODE_1
C2
PEBRN00
G11
VSS
M2
VSS
T11
PERSTN
C3
VSS
G12
VDDCORE
M3
VSS
T12
GPIO_03
C4
VDDCORE
G13
VSS
M4
VDDAPE
T13
GPIO_07
C5
VSS
G14
VDDAPE
M5
VSS
T14
TSTRSVD
C6
VTTPE
G15
VDDPE
M6
VDDCORE
T15
REFCLKM
C7
VSS
G16
VSS
M7
VSS
T16
VSS
C8
VTTPE
G17
PECTN02
M8
VSS
T17
VSS
C9
VSS
G18
PECTP02
M9
VDDCORE
T18
VDDCORE
C10
VTTPE
H1
VDDCORE
M10
VDDCORE
U1
PEBRP03
C11
VSS
H2
VSS
M11
VSS
U2
PEBRN03
C12
VTTPE
H3
VTTPE
M12
VSS
U3
VSS
C13
VDDCORE
H4
VDDAPE
M13
VDDCORE
U4
JTAG_TDI
C14
PEARP00
H5
VSS
M14
VSS
U5
JTAG_TMS
C15
PEARN00
H6
VSS
M15
VDDAPE
U6
MSMBADDR_2
C16
VDDCORE
H7
VDDCORE
M16
VSS
U7
MSMBADDR_4
C17
PECRN03
H8
VSS
M17
VSS
U8
SSMBADDR_3
C18
PECRP03
H9
VDDCORE
M18
VDDCORE
U9
CCLKUS
D1
VDDCORE
H10
VDDCORE
N1
PEBTP02
U10
SWMODE_0
D2
VSS
H11
VSS
N2
PEBTN02
U11
PECLREV
D3
VSS
H12
VDDCORE
N3
VTTPE
U12
GPIO_00
D4
VDDCORE
H13
VSS
N4
VDDAPE
U13
GPIO_02
D5
VSS
H14
VDDAPE
N5
VSS
U14
GPIO_06
D6
VDDAPE
H15
VDDPE
N6
VSS
U15
MSMBSMODE
D7
VSS
H16
VTTPE
N7
VSS
U16
VSS
D8
VDDAPE
H17
VSS
N8
VSS
U17
PECRN00
D9
VSS
H18
VDDCORE
N9
VSS
U18
PECRP00
D10
VDDAPE
J1
PEBRP01
N10
VSS
V1
VDDCORE
D11
VSS
J2
PEBRN01
N11
VSS
V2
VSS
D12
VDDAPE
J3
VSS
N12
VSS
V3
PEREFCLKP1
D13
VSS
J4
VDDPE
N13
VSS
V4
PEREFCLKN1
D14
VDDCORE
J5
VSS
N14
VSS
V5
JTAG_TRST_N
D15
VSS
J6
VDDCORE
N15
VDDAPE
V6
MSMBADDR_3
D16
VSS
J7
VSS
N16
VTTPE
V7
SSMBADDR_1
D17
VSS
J8
VSS
N17
PECTN01
V8
SSMBCLK
Alt
1
1
Table 16 PES12N3 324-pin Signal Pin-Out (Part 2 of 3)
17 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Pin
Function
Alt
Pin
Function
Alt
Pin
Function
Alt
Pin
Function
D18
VDDCORE
J9
VDDCORE
N18
PECTP01
V9
SSMBDAT
E1
PEBTN00
J10
VDDCORE
P1
VDDCORE
V10
PEBLREV
E2
PEBTP00
J11
VSS
P2
VSS
V11
SWMODE_3
E3
VDDCORE
J12
VSS
P3
VTTPE
V12
VDDIO
E4
VSS
J13
VDDCORE
P4
VSS
V13
GPIO_01
E5
VDDCORE
J14
VSS
P5
VDDIO
V14
GPIO_05
E6
VSS
J15
VDDCORE
P6
VDDIO
V15
PEREFCLKP2
E7
VSS
J16
VSS
P7
VDDIO
V16
PEREFCLKN2
E8
VDDPE
J17
PECRP02
P8
VDDIO
V17
VSS
E9
VSS
J18
PECRN02
P9
VDDIO
V18
VDDCORE
Alt
1
Table 16 PES12N3 324-pin Signal Pin-Out (Part 3 of 3)
Alternate Signal Functions
Pin
GPIO
Alternate
U13
GPIO[2]
IOEXPINTN
T12
GPIO[3]
PAABN
R12
GPIO[4]
PAAIN
V14
GPIO[5]
PAPIN
Table 17 PES12N3 Alternate Signal Functions
18 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Power Pins
VDDCore
VDDCore
VDDCore
VDDIO
VDDPE
VDDAPE
VTTPE
A4
F3
L8
F15
E8
D6
C6
A6
F6
L9
G8
E10
D8
C8
A8
F8
L10
G10
E12
D10
C10
A10
F10
L11
P5
F13
D12
C12
A12
F18
L12
P6
G4
E15
H3
A14
G12
L13
P7
G15
F4
H16
A15
H1
M1
P8
H15
G5
K3
B1
H7
M6
P9
J4
G14
K16
B2
H9
M9
P10
K5
H4
N3
B17
H10
M10
P11
K15
H14
N16
B18
H12
M13
P12
L4
M4
P3
C4
H18
M18
P13
L15
M15
P16
C13
J6
P1
P14
N4
C16
J9
P18
R4
N15
D1
J10
R6
R15
D4
J13
R13
V12
D14
J15
T1
D18
K1
T18
E3
K4
V1
E5
K18
V18
E14
L6
F1
L7
Table 18 PES12N3 Power Pins
19 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Ground Pins
Vss
Vss
Vss
Vss
Vss
A1
D15
G11
K10
N8
A2
D16
G13
K11
N9
A17
D17
G16
K12
N10
A18
E4
H2
K13
N11
B4
E6
H5
K14
N12
B6
E7
H6
K17
N13
B8
E9
H8
L3
N14
B10
E11
H11
L5
P2
B12
E13
H13
L14
P4
B14
E16
H17
L16
P15
B15
F2
J3
M2
P17
C3
F5
J5
M3
R3
C5
F7
J7
M5
R5
C7
F9
J8
M7
R14
C9
F11
J11
M8
R16
C11
F12
J12
M11
T2
D2
F14
J14
M12
T3
D3
F16
J16
M14
T16
D5
F17
K2
M16
T17
D7
G3
K6
M17
U3
D9
G6
K7
N5
U16
D11
G7
K8
N6
V2
D13
G9
K9
N7
V17
Table 19 PES12N3 Ground Pins
20 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Signals Listed Alphabetically
Signal Name
I/O Type
Location
Signal Category
CCLKDS
I
T9
System
CCLKUS
I
U9
GPIO_00
I/O
U12
GPIO_01
I/O
V13
GPIO_02
I/O
U13
GPIO_03
I/O
T12
GPIO_04
I/O
R12
GPIO_05
I/O
V14
GPIO_06
I/O
U14
GPIO_07
I/O
T13
JTAG_TCK
I
T4
JTAG_TDI
I
U4
JTAG_TDO
O
T5
JTAG_TMS
I
U5
JTAG_TRST_N
I
V5
MSMBADDR_1
I
T6
MSMBADDR_2
I
U6
MSMBADDR_3
I
V6
MSMBADDR_4
I
U7
MSMBCLK
I/O
T7
MSMBDAT
I/O
R7
MSMBSMODE
I
U15
System
PEALREV
I
R9
PCI Express
PEARN00
I
C15
PEARN01
I
B11
PEARN02
I
A9
PEARN03
I
B3
PEARP00
I
C14
PEARP01
I
A11
PEARP02
I
B9
PEARP03
I
A3
PEATN00
O
A16
PEATN01
O
B13
PEATN02
O
B7
General Purpose Input/Output
JTAG
SMBus
Table 20 PES12N3 Alphabetical Signal List (Part 1 of 3)
21 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Signal Name
I/O Type
Location
Signal Category
PEATN03
O
A5
PCI Express
PEATP00
O
B16
PEATP01
O
A13
PEATP02
O
A7
PEATP03
O
B5
PEBLREV
I
V10
PEBRN00
I
C2
PEBRN01
I
J2
PEBRN02
I
L1
PEBRN03
I
U2
PEBRP00
I
C1
PEBRP01
I
J1
PEBRP02
I
L2
PEBRP03
I
U1
PEBTN00
O
E1
PEBTN01
O
G2
PEBTN02
O
N2
PEBTN03
O
R1
PEBTP00
O
E2
PEBTP01
O
G1
PEBTP02
O
N1
PEBTP03
O
R2
PECLREV
I
U11
PECRN00
I
U17
PECRN01
I
L18
PECRN02
I
J18
PECRN03
I
C17
PECRP00
I
U18
PECRP01
I
L17
PECRP02
I
J17
PECRP03
I
C18
PECTN00
O
R18
PECTN01
O
N17
PECTN02
O
G17
PECTN03
O
E18
PECTP00
O
R17
Table 20 PES12N3 Alphabetical Signal List (Part 2 of 3)
22 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Signal Name
I/O Type
Location
Signal Category
PECTP01
O
N18
PCI Express
PECTP02
O
G18
PECTP03
O
E17
PEREFCLKN1
I
V4
PEREFCLKN2
I
V16
PEREFCLKP1
I
V3
PEREFCLKP2
I
V15
PERSTN
I
T11
System
REFCLKM
I
T15
PCI Express
RSTHALT
I
R11
System
SSMBADDR_1
I
V7
SMBus
SSMBADDR_2
I
T8
SSMBADDR_3
I
U8
SSMBADDR_5
I
R8
TSTRSVD
I
T14
System
SSMBCLK
I/O
V8
SMBus
SSMBDAT
I/O
V9
SWMODE_0
I
U10
SWMODE_1
I
T10
SWMODE_2
I
R10
SWMODE_3
I
V11
PCI Express
System
System
VDDCORE,
VDDAPE, VDDIO,
VDDPE, VTTPE
See Table 18 for a listing of power pins.
VSS
See Table 19 for a listing of ground pins.
Table 20 PES12N3 Alphabetical Signal List (Part 3 of 3)
23 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
PES12N3 Pinout — Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
VDDCore (Power)
VTTPE (Power)
VDDI/O (Power)
VDDPE (Power)
Vss (Ground)
Signals
VDDAPE (Power)
24 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
PES12N3 Package Drawing — 324-Pin BC324/BCG324
25 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
PES12N3 Package Drawing — Page Two
26 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Revision History
July 18, 2006: Publication of YC data sheet.
April 4, 2007: In Table 2, revised description for MSMBCLK signal to include “active only when EEPROM data is being loaded.”
November 14, 2007: Added new parameter, Termination Resistor, to Table 8, Input Clock Requirements.
April 9, 2010: Revised package drawing on pages 25 and 26.
27 of 28
April 9, 2010
IDT 89HPES12N3 Data Sheet
Ordering Information
NN
A
AAA
NNAN
AA
AA
A
Product
Family
Operating
Voltage
Device
Family
Product
Detail
Revision
ID
Package
Temp Range
Legend
A = Alpha Character
N = Numeric Character
Blank
Commercial Temperature
(0°C to +70°C Ambient)
BC
BC324 324-ball BGA
BCG
BCG324 324-ball BGA, Green
YC
Silicon revision
12N3
12-lane, 3-port
PES
PCI Express Switch
H
1.0V +/- 0.1V Core Voltage
89
Serial Switching Product
Valid Combinations
89HPES12N3YCBC
324-pin BC324 package, Commercial Temperature
89HPES12N3YCBCG
324-pin Green BC324 package, Commercial Temperature
®
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28 of 28
for Tech Support:
email: ssdhelp@idt.com
phone: 408-284-8208
April 9, 2010
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