E981.12A39BB ELMOS Semiconductor, E981.12A39BB Datasheet - Page 21

• Manufacturer Part Number: E981.12A39BB
• Description: Interface - Specialized Dual I/O Link Master Transciever
• Manufacturer: ELMOS Semiconductor

Specifications of E981.12A39BB

• Rohs: yes
• Product Type: Dual I/O link Master Transceiver
• Operating Supply Voltage: 3.3 V
• Supply Current: 5.5 mA
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-44
• Minimum Operating Temperature: - 40 C

Dual IO-Link Master Transceiver with UARTS
E981.12
ADVANCE PRODUCT INFORMATION - JUL 26, 2011
Fig. 12: UART buffer burst read access
The buffer is selected by bits [B3:B0]. Channel 1 is selected by 0x5 (0101b). The buffer for channel 2 is
selected by 0xA (1010b).
This buffer selection code must not be interpreted as starting address. The buffer read or write access
always starts with data byte 0. It is not needed to read or write all 127 bytes. The application has to
ensure that the buffer content matches to the number of bytes to be transmitted in register
UART_TXNUM.
For further information about SPI access see chapter SPI Interface.
This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.
ELMOS Semiconductor AG
Data Sheet 21 / 44
QM-No.: 25DS0069E.00