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SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
Peripherals
7 - 106
Micronas
line active at a time when operating in slave mode. The address by which the slave
module can be selected is written to register ICADR.
The I
2
C module is selected by another master when it receives (after a start condition),
either its own device address (stored in ICADR) or the general call address (00
H
). In this
case an interrupt is generated and bit SLA in register ICST is set, indicating the valid
selection. The desired transfer mode is then selected via bit TRX (TRX = ‘0’ for
reception, TRX = ‘1’ for transmission).
For a transmission
the respective data byte is placed into the buffer ICRTB0 … 3
(which automatically sets bit TRX) and the acknowledge behavior is selected via bit
ACKDIS.
For a reception
the respective data byte is fetched from the buffer ICRTB0 … 3 after
IRQD has been activated.
In both cases
the data transfer itself is enabled by clearing bits IRQD, IRQP and IRQE
which releases the SCL line.
When a stop condition is detected, bit SLA is cleared.
The I
2
C bus configuration register ICCFG selects the bus baud rate (partly) as well as
the activation of SDA and SCL lines. So an external I
2
C channel can be established
(baud rate and physical lines) with one single register access.
Systems that utilize several I
2
C channels can prepare a set of control words which
configure the respective channels. By writing one of these control words to ICCFG the
respective channel is selected. Different channels may use different baud rates. Also
different operating modes can be selected, e.g. enabling all physical interfaces for a
broadcast transmission.
Note: Refer also to
Chapter 7.5.2
.
Содержание SDA 6000
Страница 3: ...Contents Overview...
Страница 21: ...Pin Description...
Страница 22: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Pin Descriptions 2 3 Micronas 2 Pin Descriptions...
Страница 29: ...Architectural Overview...
Страница 33: ...C16X Microcontroller...
Страница 34: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 C16X Microcontroller 4 3 Micronas 4 C16X Microcontroller...
Страница 88: ...Interrupt and Trap Function...
Страница 122: ...System Control Configuration...
Страница 159: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 System Control Configuration 6 40 Micronas...
Страница 160: ...Peripherals...
Страница 282: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Peripherals 7 124 Micronas...
Страница 283: ...Clock System...
Страница 284: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 3 Micronas 8 Clock System...
Страница 288: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 8 Micronas...
Страница 289: ...Sync System...
Страница 290: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Sync System 9 3 Micronas 9 Sync System...
Страница 301: ...Display Generator...
Страница 302: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 3 Micronas 10 Display Generator...
Страница 348: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 50 Micronas...
Страница 349: ...D A Converter...
Страница 352: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 D A Converter 11 6 Micronas...
Страница 353: ...Slicer and Acquisition...
Страница 354: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Slicer and Acquisition 12 3 Micronas 12 Slicer and Acquisition...
Страница 381: ...Register Overview...
Страница 398: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Register Overview 13 20 Micronas...
Страница 399: ...Elelctrical Characteristics...
Страница 400: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 3 Micronas 14 Electrical Characteristics...
Страница 411: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 14 Micronas...