73S1209F Data Sheet
DS_1209F_004
C4/C8 Data Direction Register (SCDIR): 0xFE0C
Å
0x00
This register determines the direction of the internal interface C4/C8 lines. After reset, all signals are
tri-stated.
Table 85: The SCDIR Register
MSB
LSB
– – – –
C8D
C4D
– –
Bit Symbol
Function
SCDIR.7 –
SCDIR.6 –
SCDIR.5 –
SCDIR.4 –
SCDIR.3
C8D
1 = input, 0 = output. Smart Card C8 direction.
SCDIR.2
C4D
1 = input, 0 = output. Smart Card C4 direction.
SCDIR.1 –
SCDIR.0 –
90
Rev.
1.2