C511 datasheet(76/128 Pages) SIEMENS

76 / 128 page

On-Chip Peripheral Units

Semiconductor Group

6-43

6.4

Synchronous Serial Channel (SSC)

The SAB-C511/513 microcontrollers provide a Synchronous Serial Channel unit, the SSC. This

interface is compatible to the popular SPI serial bus interface. It can be used for simple I/O

expansion via shift registers, for connection of a variety of peripheral components, such as A/D

converters, EEPROMs etc., or for allowing several microcontrollers to be interconnected in a

master/slave structure. It supports full-duplex or half-duplex operation and can run in a master or a

slave mode.

6.4.1 SSC Block Diagram

Figure 6-6-30 shows the block diagram of the SSC. The central element of the SSC is an 8-bit

shift register. The input and the output of this shift register are each connected via a control logic to

the pin P1.3/SRI (SSC Receiver In) and P1.4/STO (SSC Transmitter Out). This shift register can

be written to (SFR STB) and can be read through the Receive Buffer Register SRB.

Figure 6-30

SSC Blockdiagram

Clock Divider

Clock Selection

Receive Buffer Register

Int. Enable Reg.

Control Register

. . .

fOSC 2

Shift Register

STB

SRB

Control

Logic

P1.2 / SCLK

P1.3 / SRI

P1.4 / STO

P1.5 / SLS

SCIEN

SSCCON

SCF

Status Register

Control Logic

Interrupt

Internal Bus

MCB02438

C511 Datasheet(PDF) 76 Page - Siemens Semiconductor Group

C511 Datasheet(HTML) 76 Page - Siemens Semiconductor Group

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL