Tews Technologies TCP460, Руководство пользователя

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TCP460 User Manual Issue 1.1 Page 16 of 32
4.3 Configuration EEPROM
After power-on or PCI reset, the XR17D158 loads initial configuration register data from a
configuration EEPROM. Each XR17D158 has its own configuration EEPROM.
The configuration EEPROM contains the following configuration data:
•
Vendor ID
•
Vendor Device ID
•
SubSystem Vendor ID
•
SubSystem Device ID
See the XR17D158 Manual for more information.
Address Configuration Register
Configuration
Register Offset Value
0x00 Vendor ID 0x02 0x1498
0x01 Vendor Device ID 0x00 0x21CC
0x02 Subsystem Vendor ID 0x2E 0x1498
0x03 Subsystem Device ID 0x2C s.b.
Figure 4-7 : Configuration EEPROM TCP460-xx
Subsystem ID Value (Offset 0x0C): TCP460-10 0x200A
TCP460-11 0x200B
TCP460-12 0x200C
TCP460-13 0x200D
TCP460-14 0x200E
TCP460-20 0x2014
TCP460-21 0x2015
TCP460-22 0x2016
TCP460-23 0x2017
TCP460-24 0x2018
The words following the configuration data contain:
•
The module version and revision
•
The UART clock frequency in Hz
•
The physical interface attached to the serial channels
•
The maximal baud rate of the transceivers in bps
•
The supported control signals of the serial channels
For the physical interfaces and the control signals applies: Bit 7 represents UART channel 8 and bit 0
represents UART channel 1. The appropriate bit is set to ‘1’ for each UART channel attached to the
physical interface represented by the word. Bit 15 to bit 8 are always ‘0’.
The following two tables give information about the EEPROM content of both UARTs.