73s1209f68im Maxim Integrated Products, Inc., 73s1209f68im Datasheet - Page 79
73s1209f68im
Manufacturer Part Number
73s1209f68im
Description
Self-contained Pinpad, Smart Card Reader Ic Uart To Iso7816 / Emv Bridge Ic
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.73S1209F68IM.pdf
(123 pages)
- Current page: 79 of 123
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DS_1209F_004
1.7.13.6 Smart Card SFRs
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
–
SELSC.1
SELSC.0
BYPASS
Symbol
–
–
–
–
–
–
00 = No smart card interface selected.
01 = External Smart Card Interface selected (using SCLK, SIO).
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
registers.
–
Table 73: The SCSel Register
–
0x00
SELSC.1
Function
VccCtl
SELSC.0 BYPASS
register.
SCCtl
73S1209F Data Sheet
and
SCECtl
–
LSB
79
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