AT83C26_07 ATMEL [ATMEL Corporation], AT83C26_07 Datasheet - Page 51
AT83C26_07
Manufacturer Part Number
AT83C26_07
Description
Multiple Smart Card Reader Interface With Power Management
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT83C26_07.pdf
(77 pages)
- Current page: 51 of 77
- Download datasheet (738Kb)
Table 30. SC4_CFG2 ()
7511D–SCR–02/07
Bit Number
ART4
2-0
7
7
6
5
4
3
Bit Mnemonic
CARDRST4
CARDCK4
CKSTOP4
CKS4[2:0]
ART4
6
X
X
Reset value = 0x 0X00 1000
Notes:
1. When CKS4 value is changed a special logic insures no glitch occurs on the CCLK4 pin and
2. CCLK4 must be stopped with CKSTOP4 bit before switching from CKS4 = (0, 1, 2, 3, 6, 7) to
Description
Automatic Reset Transition
Set this bit to have the CRST4 pin changed according to activation sequence.
Clear this bit to have the CRST4 pin immediately following the value programmed in CARDRST4.
Card Reset
Set this bit to enter a reset sequence according to ART4 bit value.
Clear this bit to drive a low level on the CRST4 pin.
Card Clock
Set this bit to set a high level on the CCLK4 pin (according to CKSTOP4 bit value).
Clear this bit to drive a low level on the CCLK4 pin.
CARD Clock Stop
Set this bit to stop CCLK4 according to CARDCK4. This can be used to set asynchronous cards in power-
down mode (GSM) or to drive CCLK4 by software.
Clear this bit to have CCLK4 running according to CKS4. This can be used to activate asynchronous cards.
Note:
Interface 4Card Clock Selection
CKS4 [2:0] = 0: CCLK4 = CLK (then the maximum frequency is 24 MHz)
CKS4 [3:0] = 1: CCLK4 = DCCLK
CKS4 [3:0] = 2: CCLK4 = DCCLK / 2
CKS4 [3:0] = 3: CCLK4 = DCCLK / 4
CKS4 [3:0] = 4: CCLK4 = A2
CKS4 [3:0] = 5: CCLK4 = A2 / 2
CKS4 [3:0] = 6: CCLK4 = CLK / 2
CKS4 [3:0] = 7: CCLK4 = CLK / 4
The reset value is 0.
CARDRST4
actual configuration changes can be delayed by half a period to two periods of CCLK4.
CKS4 = (4, 5) or vice versa.
5
When this bit is changed a special logic ensures that no glitch occurs on the CCLK4 pin and actual
configuration changes can be delayed by half a period to two periods of CCLK4.
CARDCK4
4
CKSTOP4
3
CKS42
2
CKS41
1
AT83C26
CKS40
0
51
Related parts for AT83C26_07
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
SMART CARD READER INTERFACE WITH POWER MANAGEMENT
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
Multiple Smart Card Reader Interface With Power Management
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Atmel CryptoMemory
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
Atmel CryptoMemory
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
Atmel CryptoMemory, 16Kbit
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
8-bit Atmel Microcontrollers
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
8-bit Atmel Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet: