at83c5122 ATMEL Corporation, at83c5122 Datasheet - Page 91

• Manufacturer Part Number: at83c5122
• Description: At83c5123 C51 Microcontroller With Usb And Smart Card Reader Interfaces
• Manufacturer: ATMEL Corporation

AT8xC5122/23
Figure 47. Card Vcc = 3V Initialization Procedure
SCICR.7=Reset=1
SCICR.7=Reset=0
VCARD[1:0] = 10
Mode Regulation
DCCKPS[7]=1
BOOST[1:0]=01
SCCON CardVcc=1
Set Timeout to 3 ms
VCARDOK=1
DC/DC Initialization
successful
Timeout
Expired
DC/DC Initialization
Failure
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4202E–SCR–06/06