DSB75 Development Support Board Rev. B1 Hardware Description
Confidential / Released
DSB75_hd_v12
Page 72 of 96
2008-08-26
Function
Reference
Switch position 1
Switch position 3
S457
Using SPIDI line as SPI1 data in
Connects B2B connector signal SPIDI to
pin 4 of the SPI connector X510 (signal
SPI1_DI)
Don’t use!
Connects B2B connector signal SPIDI to
S467 pin 2
S458
Using RXD2 line as ASC2-RXD
Connects B2B connector signal
RXD2_GPIO9 to the RS-232 transceiver
D201 used for asynchronous serial
interface ASC2
Using RXD2 line as GPIO9
Connects B2B connector signal
RXD2_GPIO9 to S468 pin 2
S459
Using TXD2 line as ASC2-TXD
Connects B2B connector signal
TXD2_GPIO10 to the RS-232 transceiver
D201 used for asynchronous serial
interface ASC2
Using TXD2 line as GPIO10
Connects B2B connector signal
TXD2_GPIO10 to S469 pin 2
S460
Pulls up GPIO1
Pulls down GPIO1
S461
Pulls up GPIO2
Pulls down GPIO2
S462
Pulls up GPIO3
Pulls down GPIO3
S463
Pulls up GPIO4
Pulls down GPIO4
S464
Pulls up GPIO5
Pulls down GPIO5
S465
Pulls up GPIO6
Pulls down GPIO6
S466
Don’t use!
Don’t use!
S467
Don’t use!
Don’t use!
S468
Pulls up GPIO9
Pulls down GPIO9
S469
Pulls up GPIO10
Pulls down GPIO10
S500
Activates 3 Volt I2CCLK line at connector
X511
Activates 5 Volt I2CCLK line at connector
X511
S501
Activates 3 Volt I2CDAT line at connector
X511
Activates 5 Volt I2CDAT line at connector
X511
S502
EEPROM address line A0 is low
EEPROM address line A0 is high
S503
EEPROM address line A1 is low
EEPROM address line A1 is high
S504
EEPROM address line A2 is low
EEPROM address line A2 is high
X551
ADC1_IN signal is open
ADC1_IN signal is connected to the filtered
DAC_OUT signal
X552
ADC2_IN signal is open
ADC2_IN signal is connected to the filtered
DAC_OUT signal
X554
Module boots from flash (normal operation)
For Cinterion internal use only!
Module boots from ROM based flash loader
(necessary if flash is empty or corrupt)