1©2019 Integrated Device Technology, Inc. July 16, 2019
Overview
This datasheet addendum is to be used in conjunction with the overall 8A34001 datasheet. This addendum indicates the register settings
that are pre-configured in the internal One-Time Programmable (OTP) memory of the device by IDT. These register settings represent the
default values the registers will take on power-up or reset. Values may be changed at any time afterwards over the serial port, but any
such changes will be lost when the device is reset or power-cycled unless programmed into OTP as an additional or replacement
configuration.
In addition, there are several other pieces of documentation that describe specific functions or details not covered this document. Table 1
shows related documents.
Table 1. Related Documentation for 8A34001
Document Title Document Description
8A34001 Datasheet
Contains a functional overview of the device and hardware-design related details
including pinouts, AC and DC specifications and applications information related to
power filtering and terminations.
8A34046E-001 Datasheet Addendum
(this document)
Indicated pre-programmed power-up / reset configurations of this specific ‘dash
code’ part number.
8A3xxxx Family Programming Guide
Contains detailed register descriptions and address maps for all members of the
family of devices. All devices use some subset of this register map.
Evaluation Board Reference Manual
Describes the Evaluation Board. Evaluation boards are available for the 8A34001
(144BGA) or 8A34002 (72QFN) devices. These devices contain a superset of the
functionality available in all other members of the 8A3xxxx Family. So they can
serve as evaluation tools for any of the less fully-featured family members.
Timing Commander Personality User Manual
Detailed description of how to use IDT’s Timing Commander configuration tool. At
this time, a personality file is only available for 8A34001. This personality contains a
superset of the functionality available in all other members of the 8A3xxxx family.
Since all members of the 8A3xxxx family share register locations and resource
numbering, configurations generated using the 8A34001 personality can be used in
any member of the 8A3xxxx family. Functionality that is not available on the other
family members will of course not respond to any configuration of it that is made.
8A34046E-001
Datasheet Addendum
8A3xxxx Family
Custom Configuration
2©2019 Integrated Device Technology, Inc. July 16, 2019
8A34046E-001 Datasheet Addendum
Device Information Block Contents
GPIO Usage at Reset
Analog Voltage Used on VDDA_BG, VDDA_LC, VDDA_PDCP and VDDA_XTAL
Device Initial Configuration Informat ion for Configuration 0
Present as blank configuration to ensure correct location for Configuration 15.
Device Initial Configuration Informat ion for Configuration 1
Present as blank configuration to ensure correct location for Configuration 15.
Device Initial Configuration Informat ion for Configuration 2
Present as blank configuration to ensure correct location for Configuration 15.
Device Initial Configuration Informat ion for Configuration 3
Present as blank configuration to ensure correct location for Configuration 15.
Device Initial Configuration Informat ion for Configuration 4
Present as blank configuration to ensure correct location for Configuration 15.
Device Initial Configuration Informat ion for Configuration 5
Present as blank configuration to ensure correct location for Configuration 15.
Device Initial Configuration Informat ion for Configuration 6
Present as blank configuration to ensure correct location for Configuration 15.
GPIO0 GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 GPIO6 GPIO7
OTP
Configuration
Selection
OTP
Configuration
Selection
OTP
Configuration
Selection
OTP
Configuration
Selection
Unused
[a]
Unused
[a]
Unused
[a]
Unused
[a]
GPIO8 GPIO9
GPIO10 (not
bonded out)
GPIO11 GPIO12 GPIO13 GPIO14 GPIO15
Unused
[a]
SPI/I2C
Selection
EEPROM Load
disable
Unused
[a]
[a] Left unused to avoid conflicts with JTAG port accesses while in nTEST mode.
Unused
[a]
Unused
[a]
Unused
[a]
Unused
[a]
Voltage Level used on VDDA_BG and VDDA_LC Supplies
[a]
[a] Used during device reset period to set regulator parameters for fastest startup time. Can be changed later via register accesses or in configuration
data, but that will result in extended startup time while re-calibration occurs.
Voltage Level used on VDDA_PDCP and VDDA_XTAL Supplies
[a]
3.3V 3.3V