AT83C26-RKRUL Atmel, AT83C26-RKRUL Datasheet - Page 57

• Manufacturer Part Number: AT83C26-RKRUL
• Description: RFID Modules & Development Tools 3V Smart card reader
• Manufacturer: Atmel

Table 39. INTERFACEB ()
7511D–SCR–02/07
Bit Number
X
7
1-0
7
6
5
4
3
2
CARDC82
6
DEMBOOSTB[1-0]
Bit Mnemonic
CARDC82
CARDIO3/
CARDC42
CARDIO5
CARDIO4
CARDIO2
CARDIO5
Reset value = 0x X000 0000
X
5
CARDIO4
Description
Set this bit to drive the CRST3/CC82 pin High with the on-chip pull-up (according to IODIS2 bit
value). The pin can then be an input (read in STATUSB register).
Clear this bit to drive a low level on the CC82 pin (according to IODIS2 bit value).
Set this bit to drive the CIO5 pin High with the on-chip pull-up when isolated from the host (See
“ITDIS ()” on page 59.). The pin can then be an input (read in STATUSB register).
Clear this bit to drive a low level on the CIO5 pin when isolated from the host.
Set this bit to drive the CIO4 pin High with the on-chip pull-up when isolated from the host (See
“ITDIS ()” on page 59.). The pin can then be an input (read in STATUSB register).
Clear this bit to drive a low level on the CIO4/C45 pin when isolated from the host.
Set this bit to drive the CIO3/CC42 pin High with the on-chip pull-up when isolated from the host
(See “ITDIS ()” on page 59.). The pin can then be an input (read in STATUSB register).
Clear this bit to drive a low level on the CIO3/CC42 pin when isolated from the host.
This bit is CIO3 when AUX=0 or when AUX=1 and IFN=2, otherwise it is CC42.
Set this bit to drive the CIO2 pin High with the on-chip pull-up when isolated from the host (See
“ITDIS ()” on page 59.). The pin can then be an input (read in STATUSB register).
Clear this bit to drive a low level on the CIO2 pin when isolated from the host.
Configuration for DC/DCB startup current.
00: Normal: 80 mA average
01: Normal + 18%
10: Normal + 18% (and boost on oscillator)
11: Normal + 40%
4
CARDIO3/CAR
DC42
3
CARDIO2
2
DEMBOOSTB1
1
AT83C26
DEMBOOSTB0
0
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