SPRSP52C December 2019 – September 2023 AM6526 , AM6528 , AM6546 , AM6548
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
MMCi interface is compliant with the SD Standard v3.01 as well as JEDEC eMMC standard v4.5 and it supports the following SD Card and eMMC applications:
For more information, see section Multimedia Card/Secure Digital () Interface in the device TRM.
Table 6-51 presents the timing conditions for MMC interface.
PARAMETER | MIN | MAX | UNIT | |||
---|---|---|---|---|---|---|
INPUT CONDITIONS | ||||||
SRI | Input slew rate | Default Speed; 3.3V Legacy SDR | 0.26 | 2.64 | V/ns | |
High Speed; 3.3V High Speed SDR | 0.69 | 2.06 | V/ns | |||
UHS-I SDR12; 1.8V Legacy SDR | 0.14 | 1.44 | V/ns | |||
UHS-I SDR25; 1.8V High Speed SDR | 0.3 | 1.34 | V/ns | |||
3.3V High Speed DDR CMD | 0.69 | 2.06 | V/ns | |||
3.3V High Speed DDR DAT | 1.03 | 2.06 | V/ns | |||
UHS-I DDR50 CMD; 1.8V High Speed DDR CMD | 0.3 | 1.34 | V/ns | |||
UHS-I DDR50 CMD; 1.8V High Speed DDR DAT | 0.34 | 1.34 | V/ns | |||
OUTPUT CONDITIONS | ||||||
CL | Output load capacitance | SDR50 | 1 | 10 | pF | |
SDR104; HS200 | 1 | 6 | pF | |||
All other modes | 1 | 12 | pF | |||
PCB CONNECTIVITY REQUIREMENTS | ||||||
td(Trace Delay) | Propagation delay of each trace - SD Specification | Default Speed; SDR12 SDR50; SDR104 |
134 | 1474 | ps | |
High Speed; SDR25 | 134 | 1139 | ps | |||
DDR50 | 255 | 11394 | ps | |||
Propagation delay of each trace - JEDEC eMMC | 1.8V, 3.3V Legacy SDR 1.8V, 3.3V High Speed SDR HS200 |
134 | 670 | ps | ||
1.8V/ 3.3 V High Speed DDR (DDR52) | 168 | 670 | ps | |||
td(Trace Mismatch Delay) | Propagation delay mismatch across all traces | Default Speed; 3.3V Legacy SDR | 100 | ps | ||
3.3V High Speed SDR; HS400 DAT | 8 | ps | ||||
All other modes | 20 | ps |
REGISTER NAME | MMCSDn_SS_PHY_CTRL_4_REG | MMCSDn_SS_PHY_CTRL_5_REG | |||||||
---|---|---|---|---|---|---|---|---|---|
BIT FIELD | [27:24] | [20] | [15:12] | [8] | [4:0] | [17:16] | [9:8]] | [2:0] | |
BIT FIELD NAME | STRBSEL | OTAPDLYENA | OTAPDLYSEL | ITAPDLYENA | ITAPDLYSEL | SELDLYTXCLK SELDLYRXCLK |
SEL100 SEL50 |
CLKBUFSEL | |
MODE | DESCRIPTION | STROBE DELAY |
OUTPUT DELAY ENABLE |
OUTPUT DELAY VALUE |
INPUT DELAY ENABLE |
INPUT DELAY VALUE |
DLL DELAY CHAIN SELECT |
DLL REF FREQUENCY |
DELAY BUFFER DURATION |
Default Speed |
4- or 8-bit PHY operating 3.3 V, 25 MHz mode |
0x0 | 0x0 | 0x0 | 0x1 | 0xA | 0x3 | 0x0 | 0x7 |
High Speed |
4- or 8-bit PHY operating 3.3 V, 50 MHz mode |
0x0 | 0x0 | 0x0 | 0x1 | 0x1 | 0x3 | 0x0 | 0x7 |
SDR12 | 4- or 8-bit PHY operating 1.8 V, 25 MHz mode |
0x0 | 0x1 | 0xF | 0x1 | 0xA | 0x3 | 0x0 | 0x7 |
SDR25 | 4- or 8-bit PHY operating 1.8 V, 50 MHz mode |
0x0 | 0x1 | 0xF | 0x1 | 0x1 | 0x3 | 0x0 | 0x7 |
SDR50 | 4- or 8-bit PHY operating 1.8 V, 100 MHz |
0x0 | 0x1 | 0x8 | 0x1 | Tuning | 0x0 | 0x2 | 0x7 |
High Speed DDR (DDR52) |
4- or 8-bit PHY, 1.8V or 3.3V, JEDEC 50 MHz |
0x0 | 0x1 | 0x5 | 0x1 | 0x0 | 0x0 | 0x1 | 0x7 |
DDR50 | 4- or 8-bit PHY, 1.8V or 3.3V, SD/SDIO 50 MHz |
0x0 | 0x1 | 0x4 | 0x1 | Tuning | 0x0 | 0x1 | 0x7 |
SDR104 | 4- or 8-bit PHY operating 1.8 V, SD/SDIO 200 MHz |
0x0 | 0x1 | 0x7 | 0x1 | Tuning | 0x0 | 0x0 | 0x7 |
HS200 | 4- or 8-bit PHY operating 1.8 V, JEDEC 200 MHz |
0x0 | 0x1 | 0x5 | 0x1 | Tuning | 0x0 | 0x0 | 0x7 |
For more information, see section Multimedia Card/Secure Digital (eMMC/SD/SDIO) Interface in the device TRM.