STPCI2HDYI STMicroelectronics, STPCI2HDYI Datasheet - Page 50

• Manufacturer Part Number: STPCI2HDYI
• Manufacturer: STMicroelectronics

Specifications of STPCI2HDYI

• Operating Temperature (min): -40C
• Operating Temperature (max): 115C
• Processing Unit: Microprocessor
• Operating Supply Voltage (min): 2.45/3V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 2.7/3.6V
• Package Type: BGA
• Screening Level: Industrial
• Pin Count: 516
• Mounting: Surface Mount
• Rad Hardened: No
• Lead Free Status / RoHS Status: Supplier Unconfirmed

STPC® ATLAS
4.5.2 RESET SEQUENCE
Figure 4-4
STPC, also called warm reset.
The constraints on the strap options and the bus
activities are the same as for the cold reset.
The SYSRSTI# pulse duration must be long
enough to have all the strap options stabilized and
must be adjusted depending on resistor values.
Figure 4-4. Reset timing diagram
50/108
1
14 MHz
SYSRSTI#
ISACLK
Strap Options
HCLK
PCI_CLK
SYSRSTO#
describes the reset sequence of the
MD[63:0]
1.6 V
VALID CONFIGURATION
It is mandatory to have a clean reset pulse without
glitches as the STPC could then sample invalid
strap option setting and enter into an umpredicta-
ble mode.
While SYSRSTI# is active, the PCI clock PLL runs
in open loop mode at a speed of few 100’s KHz.
2.3 ms