73S1217F-68MR/F/PE Maxim Integrated, 73S1217F-68MR/F/PE Datasheet - Page 89

• Manufacturer Part Number: 73S1217F-68MR/F/PE
• Description: 8-bit Microcontrollers - MCU
• Manufacturer: Maxim Integrated

Specifications of 73S1217F-68MR/F/PE

• Rohs: yes
• Core: 80515
• Data Bus Width: 8 bit
• Part # Aliases: 90-W1217+TF5

1.7.17.6
Smart Card Select Register (SCSel): 0xFE00
The Smart Card Select register is used to determine which smart card interface is using the ISO UART.
The internal Smart Card has integrated 7816-3 compliant sequencer circuitry to drive an external smart
card interface. The external smart card interface relies on 73S8010x parts to generate the ISO 7816-3
compatible signals and sequences. Multiple 73S8010x devices can be connected to the external smart
card interface.
Rev. 1.2
SCSel.7
SCSel.6
SCSel.5
SCSel.4
SCSel.3
SCSel.2
SCSel.1
SCSel.0
Bit
MSB
Smart Card SFRs
–
SELSC.1
SELSC.0
BYPASS
Symbol
–
–
–
–
–
–
00 = No smart card interface selected.
01 01 = External Smart Card Interface selected (using SCLK, SIO).
02 1X = Internal Smart Card Interface selected.
Select Smart Card Interface – These bits select the interface that is using
the IS0 UART. These bits do not activate the interface. Activation is
performed by the
1 = Enabled, 0 = Disabled. When enabled, ISO UART is bypassed and the
I/O line is controlled via the
–
Table 79: The SCSel Register
VccCtl
–
0x00
register.
SELSC.1
SCCtl
Function
and
SELSC.0 BYPASS
SCECtl
registers.
–
LSB
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