ZHCSLA7C December 2019 – September 2023 AM6526 , AM6528 , AM6546 , AM6548
PRODUCTION DATA
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.