GAMMA instabus
Release: February 2012
KNX EIB TP-UART 2-IC
Siemens AG pages 42 Technical Manual
Infrastructure and Cities Sector,
Building Technologies
Control Products and Systems © Siemens AG 2012 page 3
P. O. Box 10 09 53, Subject to change without further notice.
D-93009 Regensburg
TABLE OF CONTENTS
1 MODES OF OPERATION .......................................................................................................................5
1.1
INTERFACE TO HOST ELECTRONICS........................................................................................................... 5
1.2
SELECTION OF DIFFERENT MODES OF OPERATION................................................................................. 5
2 THE ANALOG – PART ...........................................................................................................................6
2.1
PACKAGE AND PIN DEFINITIONS.................................................................................................................. 6
2.1.1
Package Pin Assignment ........................................................................................................................... 6
2.1.2
PIN DESCRIPTION.................................................................................................................................... 6
2.2
OPERATING CONDITIONS.............................................................................................................................. 8
2.2.1
General operating conditions ..................................................................................................................... 8
2.2.2
ABSOLUTE MAXIMUM RATINGS (NON OPERATING)............................................................................ 8
2.2.3
Bus Pins VB+ and VB ............................................................................................................................. 10
2.2.4
CCS stabilisation Pin BYP........................................................................................................................ 10
2.2.5
Buffer Voltage Pin VSP ............................................................................................................................ 10
2.2.6
Supply Pin VCC........................................................................................................................................ 11
2.2.7
Supply Pin VDP........................................................................................................................................ 12
2.2.8
Supply Pins VDDH and VSSH.................................................................................................................. 12
2.2.9
Supply Pin V20 and Pin R20 .................................................................................................................... 13
2.2.10
Pin IND, SMPSoutput.............................................................................................................................. 14
2.2.11
Pin SVCC ................................................................................................................................................. 14
2.2.12
Receive Pin RxIN ..................................................................................................................................... 14
2.2.13
Transmit Pin TxO ..................................................................................................................................... 15
2.2.14
Supply Pin VIF.......................................................................................................................................... 15
2.2.15
Oscillator Pins X1 and X2......................................................................................................................... 15
2.2.16
Interface Pin RxD ..................................................................................................................................... 15
2.2.17
Interface Pin TxD...................................................................................................................................... 16
2.2.18
Switching Pin STxO.................................................................................................................................. 16
2.2.19
Reset Pin RESn ....................................................................................................................................... 17
2.2.20
Mode Control Pins MODE0, MODE1, MODE2, MODE3 TESTMODE and CTM ..................................... 17
2.2.21
Pin TSTIN_BDS........................................................................................................................................ 17
2.2.22
Pin TSTOUT_TW ..................................................................................................................................... 18
2.2.23
Pin SAVE.................................................................................................................................................. 18
2.2.24
Pin DIV ..................................................................................................................................................... 18
3 DIGITALPART.......................................................................................................................................19
3.1
RELATIONSHIP TO ISOREFERENCEMODEL............................................................................................ 19
3.2
UART – INTERFACE TO HOST CONTROLLER............................................................................................ 20
3.2.1
Configuration and Timing ......................................................................................................................... 20
3.2.2
Resetbehavior .......................................................................................................................................... 20
3.2.3
UARTProtocol Definition ......................................................................................................................... 20
4 MECHANICAL SPECIFICATION ..........................................................................................................34
