IAR-KSK-IMX25 Freescale Semiconductor, IAR-KSK-IMX25 Datasheet - Page 98

• Manufacturer Part Number: IAR-KSK-IMX25
• Description: KIT DEVELOPMENT I.MX257, ARM926
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r
• Type: MCUr

Specifications of IAR-KSK-IMX25

• Contents: Board, Cables, CD, Debugger, Power Supply
• Processor To Be Evaluated: I.MX257
• Processor Series: i.MX25
• Data Bus Width: 16 bit
• Interface Type: UART, JTAG, USB, Ethernet, SD/MMC
• Core: ARM926EJ-S
• Silicon Manufacturer: Freescale
• Core Architecture: ARM
• Core Sub-architecture: ARM9
• Silicon Core Number: I.MX2
• Silicon Family Name: I.MX25
• Mcu Supported Families: I.MX25
• For Use With/related Products: i.MX25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SIMx_DATAy_RX_TX
3.7.14.1
SIM cards may have internal reset, or active low reset. The following subset describes the reset sequences
in these two cases.
3.7.14.1.1
Figure 69
following steps:
Table 75
3.7.14.1.2
Figure 70
following steps:
98
SIMn_SVENm
SIMx_CLKy
•
•
•
•
•
•
•
•
After power-up, the clock signal is enabled on SIMx_CLKy (time T0)
After 200 clock cycles, SIMx_DATAy_RX_TX must be asserted.
The card must send a response on SIMx_DATAy_RX_TX acknowledging the reset between
400–40000 clock cycles after T0.
After power-up, the clock signal is enabled on SIMx_CLKy (time T0)
After 200 clock cycles, SIMx_DATAy_RX_TX must be asserted.
SIMx_RSTy must remain low for at least 40,000 clock cycles after T0 (no response is to be received
on RX during those 40,000 clock cycles)
SIMx_RSTy is asserted (at time T1)
SIMx_RSTy must remain asserted for at least 40,000 clock cycles after T1, and a response must be
received on SIMx_DATAy_RX_TX between 400 and 40,000 clock cycles after T1.
defines the general timing requirements for the SIM interface.
shows the reset sequence for SIM cards with active low reset. The reset sequence comprises the
shows the reset sequence for SIM cards with internal reset. The reset sequence comprises the
Ref No.
SIM Reset Sequences
1
2
SIM Cards with Internal Reset
SIM Cards with Active Low Reset
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
T0
Table 75. Timing Specifications, Internal Reset Card Reset Sequence
1
Figure 69. Internal Reset Card Reset Sequence
2
Min.
400
—
RESPONSE
40,000
Max.
200
clk cycles
clk cycles
Freescale Semiconductor
Units