GSM 11.11 version 6.2.0 - TTFN Smart card pages

(GSM 11.11 version 6.2.0 Release 1997)17TS 100 977 V6.2.0 (1999-05)The duty cycle shall be between 40 % and 60 % of the period during stable operation.The ME shall operate the SIM within the following limits:Table 3: Electrical characteristics of CLK under normal operating conditionsSymbol Conditions Minimum MaximumV OH I OHmax = +20 µA 0,7xVcc Vcc (note)V OL I OLmax = -200 µA 0 V (note) 0,5 Vt R t F C out = C in = 30 pF 9 % of period with a maximum of0,5 µsNOTE:To allow for overshoot the voltage on CLK shall remain between -0,3 V andVcc+0,3 V during dynamic operation.5.5 I/O (contact C7)Table 4 defines the electrical characteristics of the I/O (contact C7). The values given in the table have the effect ofdefining the values of the pull-up resistor in the ME and the impedances of the drivers and receivers in the ME and SIM.Table 4: Electrical characteristics of I/O under normal operating conditionsSymbol Conditions Minimum MaximumV IH I IHmax = ± 20 µA (note 2) 0,7xVcc Vcc+0,3 VV IL I ILmax = +1 mA -0,3 V 0,8 VV OH (note 1) I OHmax = + 20µA 3,8 V Vcc (note 3)V OL I OLmax = -1 mA 0 V (note 3) 0,4 Vt R t F C out = C in = 30 pF 1 µsNOTE 1: It is assumed that a pull-up resistor is used in the interface device (recommendedvalue: 20 kohms).NOTE 2: During static conditions (idle state) only the positive value can apply. Underdynamic operating conditions (transmission) short term voltage spikes on the I/Oline may cause a current reversal.NOTE 3: To allow for overshoot the voltage on I/O shall remain between -0,3 V andVcc+0,3 V during dynamic operation.5.6 StatesThere are two states for the SIM while the power supply is on:- The SIM is in operating state when it executes a command. This state also includes transmission from and to theME.- The SIM is in idle state at any other time. It shall retain all pertinent data during this state.The SIM may support a clock stop mode. The clock shall only be switched off subject to the conditions specified in thefile characteristics (see clause 9).Clock stop mode. An ME of Phase 2 or later shall wait at least 1 860 clock cycles after having received the lastcharacter, including the guard time (2 etu), of the response before it switches off the clock (if it is allowed to do so). Itshall wait at least 744 clock cycles before it sends the first command after having started the clock.To achieve phase compatibility, the following procedure shall be adhered to:A SIM of Phase 2 or later shall always send the status information "normal ending of the command" after the successfulinterpretation of the command SLEEP received from a Phase 1 ME. An ME of Phase 2 or later shall not send a SLEEPcommand.ETSI