MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 1320

• Manufacturer Part Number: MPC8536E-ANDROID
• Description: HARDWARE/SOFTWARE ANDROID OS
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC ™r
• Type: MPUr

Specifications of MPC8536E-ANDROID

• Contents: Board
• For Use With/related Products: MPC8536
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Enhanced Secure Digital Host Controller
20.6.2.2
The host consists of three types of reset:
After the card is reset, the host needs to validate the voltage range of the card. See
software flow to reset the eSDHC and card.
20-46
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Set IRQSIGEN[CINIEN] to enable card detection interrupt.
When an interrupt from eSDHC is received, check IRQSTAT[CINS] to see if it is caused by card
insertion.
Clear the IRQSIGEN[CINIEN] to disable card detection interrupt and ignore all card insertion
interrupt afterwards.
Hardware reset (card and host) which is driven by POR (power on reset).
Software reset (host only) is proceeded by the write operation on the SYSCTL[RSTD],
SYSCTL[RSTC], or SYSCTL[RSTA] bits to reset the data part, command part, or all parts of the
host controller, respectively.
Card reset (card only). The command CMD0, GO_IDLE_STATE, is the software reset command
for all types of MMCs and SD memory cards. This command sets each card into idle state
regardless of the current card state. The cards are initialized with a default relative card address
(RCA = 0x0000) and with a default driver stage register setting (lowest speed, highest driving
current capability).
Reset
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
Figure 20-25. Flow Diagram for Card Detection
Enable card detection IRQ
Wait for eSDHC interrupt
Clear CINIEN to disable
card detection interrupt
Voltage validation
Check CINS bit
Yes, card present
No card present
(1)
(2)
Figure 20-26
Freescale Semiconductor
for the