Rainbow-electronics AT83C26 Bedienungsanleitung PDF herunterladen (Seite 55)

7511B–SCR–10/05

AT83C26

Reset value = 0x XXXX 1000

Reset value for IOSEL[3:0]= 0x1000

Table 37. IO_SELECT (Selection byte for IO)

7 6 5 4 3 2 1 0

X X X X IOSEL3 IOSEL2 IOSEL1 IOSEL0

Bit Number Bit Mnemonic Description

7 X

6 X

5 X

4 X

3-0 IOSEL[3:0]

IO Selection

This field indicates the IO routing between the host and the Smart Card Interfaces when activated,

seeTable 38 and IODISn value (n=1, 2, 3, 4, 5). When no host IO is routed to a smart card pin, this pin is

driven according to the Interface register. See Section “CIO, CC4, CC8 controller”, page 15.

Table 38. IO Selection

IOSEL[3:0] IO1 IO2 AUX1 AUX2

0000 CIO1 -

(1)

0001 CIO2 -

(1)

0010 CIO3 -

(1)

0011 CIO4 -

(1)

0100 CIO5 -

(1)

0101 CIO1 CIO2 CC41 CIO3/CC42

0110 CIO1 CIO2 CC41 CIO4

0111 CIO1 CIO2 CC41 CIO5

1000 CIO1 CIO2 CC41 CC81

1001 CIO1 CIO3 CC41 CC81

1010 CIO1 CIO4 CC41 CC81

1011 CIO1 CIO5 CC41 CC81

1100 CIO1 CIO5 CIO3/CC42 CIO4

1101 CIO2 CIO5 CIO3/CC42 CIO4

1110 CIO2 CIO4 CIO3/CC42 CRST3/CC82

1111 CIO2 CIO5 CIO3/CC42 CRST3/CC82

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Rainbow-electronics AT83C26 Bedienungsanleitung Seite 55