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SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
Peripherals
7 - 57
Micronas
Depending on the asynchronous operating mode (controlled by bitfield CON_M), the
ASC output signal or the RXD input signal in echo mode (controlled by bit
ABCON_ABEM) is switched to the TXD output by an inverter (controlled by bit
ABCON_TXINV).
Figure 7-29
RXD/TXD Data Path in Asynchronous Modes
In echo mode, the transmit output signal of the ASC_P3 logic is blocked by the echo
mode output multiplexer.
Figure 7-29
also shows that it is not possible to use an IrDA
coded receiver input signal for autobaud detection.
7.3.2
Synchronous Operation
Synchronous mode supports half-duplex communication, basically for simple I/O
expansion via shift registers. Data is transmitted and received via pin RXD0 while pin
TXD0 outputs the shift clock. These signals are alternate functions of port pins.
Synchronous mode is selected with S0M = ‘000
B
’.
8 data bits are transmitted or received synchronous to a shift clock, generated by the
internal baud rate generator. The shift clock is only active as long as data bits are
transmitted or received.
UED11148
MUX
RxD
MUX
MUX
Coding
IrDA
Decoding
IrDA
Asynch. Mode Logic
ASC
CON
LB
RxDI
MUX
MUX
MUX
TxD
Detection
ABCON
Autobaud
RXINV
TXINV
ABEM
M
Summary of Contents for SDA 6000
Page 3: ...Contents Overview...
Page 21: ...Pin Description...
Page 22: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Pin Descriptions 2 3 Micronas 2 Pin Descriptions...
Page 29: ...Architectural Overview...
Page 33: ...C16X Microcontroller...
Page 88: ...Interrupt and Trap Function...
Page 122: ...System Control Configuration...
Page 159: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 System Control Configuration 6 40 Micronas...
Page 160: ...Peripherals...
Page 282: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Peripherals 7 124 Micronas...
Page 283: ...Clock System...
Page 284: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 3 Micronas 8 Clock System...
Page 288: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 8 Micronas...
Page 289: ...Sync System...
Page 290: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Sync System 9 3 Micronas 9 Sync System...
Page 301: ...Display Generator...
Page 348: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 50 Micronas...
Page 349: ...D A Converter...
Page 352: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 D A Converter 11 6 Micronas...
Page 353: ...Slicer and Acquisition...
Page 381: ...Register Overview...
Page 398: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Register Overview 13 20 Micronas...
Page 399: ...Elelctrical Characteristics...
Page 411: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 14 Micronas...