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DSB75 Development Support Board Rev. B1 Hardware Description

Strictly confidential / Released

DSB75_hd_v08 Page 8 of 94 29.09.2005

Preceding document: "DSB75 Development Support Board Rev B1 Hardware Description", v03

New document: "DSB75 Development Support Board Rev. B1 Hardware Description" v04

Chapter What is new

1.4 Updated table: “Terms and Abbreviations”

2.5 Deleted “for ORGA test device” in table 2, row “SIM”

3.3 Deleted line: “It is important to switch the used GPIO lines to the LED driver (S450 –

S459 pos.3).”

3.6.2 Updated table 12. Added description for pin 1 – 8 (X700), pin 1 – 7, 9 (X701)

3.6.2.2 Added “The plug of “Siemens Car Kit portable HKP-500” is compatible to Lumberg

connector X701. The plug of “Siemens Car Kit Portable” is compatible to Lumberg

connector X700. Changed Siemens ordering number for HKP-500.

3.6.3 Modified figure: ”Circuit of microphone feeding bridges”

3.8 Corrected switch position for a direct connection of the USB lines to the GSM module.

Table 14: deleted column “Remark”

3.9 Deleted section “I2C is a serial, 8-bit oriented data transfer bus for bit rates up to 400

kbps in Fast mode. It consists of two lines: the serial data line I²CDAT and the serial

clock line I²CCLK. The electrical characteristics comply with the I²C standard.”

Deleted section “A master is the device which initiates a data transfer on the bus and

generates the clock signals to permit that transfer. At this time, any device addressed

is considered a slave. The master can operate as a master transmitter or as a master

receiver.”

Changed: VEXT to VDD

Modified figure: “I²C interface”

Corrected table 15: Pin assignment of the I²C interface X511

3.10 Modified figures: “SD card interface” and “Location of slide switches”

3.11 Modified figure: “SPI interfaces”

Corrected figure: “SPI interfaces location and related switches”

3.12 Deleted list item “The filter characteristic depends on the signal frequency range.”

Added new figure: “PWM filter characteristics”

Modified figures: “Analog interface” and “Analog interface location and related

switches”

3.14 Modified figure: “Power supply interfaces”

3.14.1 Corrected Table 23, row “GSM module supply”: 4.7F to 4700µF.

3.14.3.2 Modified figure: “Schematic of charging circuit”

3.14.5 Replaced “slide switches” with “jumpers”

Deleted constraints: “The maximum voltage is set only via the slide switches, it cannot

be adjusted via the resistors.

4.1 Modified figure: “ASC signal indication circuit”

4.2 Modified figure: “GPIO signal indication circuit”

8.2 Added figures: “Schematic of page signals” and “Schematic of position list”

Modified figure: “Schematic sheet 6 – charging interface”

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