MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 1328

• 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
}
disable_sd_high_speed_mode(void)
{
}
20.6.4.2
enable_mmc_high_speed_mode(void)
{
}
disable_mmc_high_speed_mode(void)
{
}
20-54
check if the bit 401 of received 512 bit is set;
if (bit 401 is ‘0’) report the SD card does not support high speed mode and return;
send CMD6, with argument 0x80FFFFF1 and read 64 bytes of data accompanying the R1
check if the bit field 379~376 is 0xF;
if (the bit field is 0xF) report the function switch failed and return;
change clock divisor value or configure the system clock feeding into eSDHC to generate
(data transactions like normal peers)
set BLKCNT field to 1 (block), set BLKSIZE field to 64 (bytes);
send CMD6, with argument 0x80FFFFF0 and read 64 bytes of data accompanying the R1
check if the bit field 379~376 is 0xF;
if (the bit field is 0xF) report the function switch failed and return;
change clock divisor value or configure the system clock feeding into eSDHC to generate
(data transactions like normal peers)
send CMD9 to get CSD value of MMC;
check if the value of SPEC_VER field is 4 or above;
if (SPEC_VER value is less than 4) report the MMC does not support high speed mode and
set BLKCNT field to 1 (block), set BLKSIZE field to 512 (bytes);
send CMD8 to get EXT_CSD value of MMC;
extract the value of CARD_TYPE field to check the ‘high speed mode’ in this MMC is
send CMD6 with argument 0x1B90100;
send CMD13 to wait card ready (busy line released);
send CMD8 to get EXT_CSD value of MMC;
check if HS_TIMING byte (byte number 185) is 1;
if (HS_TIMING is not 1) report MMC switching to high speed mode failed and return;
change clock divisor value or configure the system clock feeding into eSDHC to generate
(data transactions like normal peers)
send CMD6 with argument 0x2B90100;
set BLKCNT field to 1 (block), set BLKSIZE field to 512 (bytes);
send CMD8 to get EXT_CSD value of MMC;
check if HS_TIMING byte (byte number 185) is 0;
if (HS_TIMING is not 0) report the function switch failed and return;
change clock divisor value or configure the system clock feeding into eSDHC to generate
(data transactions like normal peers)
Query, Enable and Disable MMC High Speed Mode
response;
the card_clk of around 50MHz;
response;
the card_clk of the desired value below 25MHz;
return;
26MHz or 52MHz;
the card_clk of around 26MHz or 52MHz according to the CARD_TYPE;
the card_clk of the desired value below 20MHz;
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
Freescale Semiconductor