at83c26 ATMEL Corporation, at83c26 Datasheet - Page 33
at83c26
Manufacturer Part Number
at83c26
Description
Multiple Smart Card Reader Interface With Power Management
Manufacturer
ATMEL Corporation
Datasheet
1.AT83C26.pdf
(77 pages)
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Write Commands
7511D–SCR–02/07
The write commands are:
1. General Call Reset:
2. Reset:
3. Write SC1_CFG0, SC1_CFG1, SC1_CFG2, SC1_CFG3, SC1_CFG4:
4. Write TIMER_MSB, TIMER_LSB:
5. Write SC1_INTERFACE:
6. Write common config smart cards:
7. Write SC2 interface: SC2_CFG0, SC2_CFG1, SC2_CFG2
8. Write SC3 interface: SC3_CFG0, SC3_CFG2
9. Write SC4 interface: SC4_CFG0, SC4_CFG2
Figure 22. Command byte format for Write SC1_CFG0 command
A general call followed by the value 06h has the same effect as a Reset command.
Initialize all the logic and the TWI interface as after a power-up or power-fail reset. If the
interface is activated, an emergency de-activation sequence is also performed. This is a
one-byte command.
Configure the device according to the last six bits in the SC1_CFG0 register and to the fol-
lowing four bytes in SC1_CFG1, SC1_CFG2, SC1_CFG3 then SC1_CFG4 registers. This is
a five bytes command.
Program the 16-bit automatic reset transition timer with the following two bytes. This is a
three bytes command.
Program the interface byte. This is a one-byte command. The MSB of the command byte is
fixed at 0.
IO_SELECT, INTERFACE_B, ITDIS:
Configuration of parameters for smart card interfaces.
Configuration of smart card interface 2.
Configuration of SIM/SAM interface 3.
Configuration of SIM/SAM interface 4.
b7
1
b6
0
b5
X
SC1_CFG0 on 6 Bits
b4
X
b3
X
b2
X
b1
X
b0
X
AT83C26
33