MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 1329

• 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

20.6.4.3
change_mmc_bus_width(void)
{
}
20.6.5
See
for details about the command information.
Four kinds of commands control the MMC:
Freescale Semiconductor
CMD0
CMD1
CMD2
CMD3
CMD4
CMD6
INDEX
CMD
1. Broadcast commands (bc)—no response
2. Broadcast commands with response (bcr)—response from all cards simultaneously
3. Addressed (point-to-point) commands (ac)—no data transfer on SDHC_DAT
4. Addressed (point-to-point) data transfer commands (ADTC)
Table 20-27
(1)
(2)
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 multiple bit width
send CMD6 with argument 0x3B70x00; (8-bit, x=2; 4-bit, x=1; 1-bit, x=0)
send CMD13 to wait card ready (busy line released);
(data transactions like normal peers)
Commands for MMC/SD
Type
adtc
bcr
bcr
bc
ac
bc
Set MMC Bus Width
for the list of commands for the MMC/SD cards. Refer to the corresponding specifications
[31:0] OCR without
busy
[31:0] stuff bits
[31:6] RCA
[15:0] stuff bits
[15:0] stuff bits
[31] Mode
0: Check function
1: Switch function
[30:8] Reserved for
function groups 6 ~ 3
(All 0 or 0xFFFF)
[7:4] Function group1
for command system
[3:0] Function group2
for access mode
[31:0] stuff bits
[31:0] DSR
and return;
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
Argument
Table 20-27. Commands for MMC/SD
Resp
R3
R2
R1
R1
—
—
GO_IDLE_STATE
ALL_SEND_CID
SET/SEND_RELATIVE_AD
DR
SET_DSR
SEND_OP_COND
SWITCH_FUNC
Abbreviation
Resets all MMC and SD memory cards
to idle state.
Asks all MMCs and SD memory cards
in idle state to send their operation
conditions register contents in the
response on the SDHC_CMD line.
Asks all cards to send their CID
numbers on the SDHC_CMD line.
Assigns relative address to the card.
Programs the DSR of all cards.
Checks switch ability (mode 0) and
switch card function (mode 1). Refer to
SD Physical Specification version 1.1
for details.
Enhanced Secure Digital Host Controller
Description
1
20-55