SPRS956H March 2016 – November 2019 DRA722 , DRA724 , DRA725 , DRA726
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
Table 7-109 and Table 7-110 present Timing requirements and Switching characteristics for MMC1 - DDR50 in receiver and transmitter mode (see Figure 7-74 and Figure 7-75).
NO. | PARAMETER | DESCRIPTION | MODE | MIN | MAX | UNIT |
---|---|---|---|---|---|---|
DDR505 | tsu(cmdV-clk) | Setup time, mmc1_cmd valid before mmc1_clk transition | 1.79 | ns | ||
DDR506 | th(clk-cmdV) | Hold time, mmc1_cmd valid after mmc1_clk transition | 1.6 | ns | ||
DDR507 | tsu(dV-clk) | Setup time, mmc1_dat[3:0] valid before mmc1_clk transition | Pad Loopback | 1.79 | ns | |
Internal Loopback | 1.79 | ns | ||||
DDR508 | th(clk-dV) | Hold time, mmc1_dat[3:0] valid after mmc1_clk transition | Pad Loopback | 1.6 | ns | |
Internal Loopback | 1.6 | ns |
NO. | PARAMETER | DESCRIPTION | MIN | MAX | UNIT |
---|---|---|---|---|---|
DDR500 | fop(clk) | Operating frequency, mmc1_clk | 48 | MHz | |
DDR501 | tw(clkH) | Pulse duration, mmc1_clk high | 0.5 × P - 0.185 (1) | ns | |
DDR502 | tw(clkL) | Pulse duration, mmc1_clk low | 0.5 × P - 0.185 (1) | ns | |
DDR503 | td(clk-cmdV) | Delay time, mmc1_clk transition to mmc1_cmd transition | 1.225 | 6.6 | ns |
DDR504 | td(clk-dV) | Delay time, mmc1_clk transition to mmc1_dat[3:0] transition | 1.225 | 6.6 | ns |
NOTE
To configure the desired virtual mode the user must set MODESELECT bit and DELAYMODE bit field for each corresponding pad control register.
The pad control registers are presented in Table 4-3 and described in Device TRM, Control Module Chapter.
Virtual IO Timings Modes must be used to ensure some IO timings for MMC1. See Table 7-2Modes Summary for a list of IO timings requiring the use of Virtual IO Timings Modes. See Table 7-111Virtual Functions Mapping for MMC1 for a definition of the Virtual modes.
Table 7-111 presents the values for DELAYMODE bit field.
BALL | BALL NAME | Delay Mode Value | MUXMODE | |||
---|---|---|---|---|---|---|
MMC1_
VIRTUAL1 |
MMC1_
VIRTUAL4 |
MMC1_
VIRTUAL5 |
MMC1_
VIRTUAL6 |
0 | ||
W6 | mmc1_clk | 15 | 12 | 11 | 10 | mmc1_clk |
Y6 | mmc1_cmd | 15 | 12 | 11 | 10 | mmc1_cmd |
AA6 | mmc1_dat0 | 15 | 12 | 11 | 10 | mmc1_dat0 |
Y4 | mmc1_dat1 | 15 | 12 | 11 | 10 | mmc1_dat1 |
AA5 | mmc1_dat2 | 15 | 12 | 11 | 10 | mmc1_dat2 |
Y3 | mmc1_dat3 | 15 | 12 | 11 | 10 | mmc1_dat3 |
NOTE
To configure the desired Manual IO Timing Mode the user must follow the steps described in section Manual IO Timing Modes of the Device TRM.
The associated registers to configure are listed in the CFG REGISTER column. For more information, see Control Module chapter in the device TRM.
Manual IO Timings Modes must be used to ensure some IO timings for MMC1. See Table 7-2Modes Summary for a list of IO timings requiring the use of Manual IO Timings Modes. See Table 7-112Manual Functions Mapping for MMC1 for a definition of the Manual modes.
Table 7-112 lists the A_DELAY and G_DELAY values needed to calculate the correct values to be set in the CFG_x registers.
BALL | BALL NAME | MMC1_MANUAL1 | MMC1_MANUAL2 | CFG REGISTER | MUXMODE | ||
---|---|---|---|---|---|---|---|
A_DELAY (ps) | G_DELAY (ps) | A_DELAY (ps) | G_DELAY (ps) | 0 | |||
W6 | mmc1_clk | 588 | 0 | - | - | CFG_MMC1_CLK_IN | mmc1_clk |
Y6 | mmc1_cmd | 1000 | 0 | - | - | CFG_MMC1_CMD_IN | mmc1_cmd |
AA6 | mmc1_dat0 | 1375 | 0 | - | - | CFG_MMC1_DAT0_IN | mmc1_dat0 |
Y4 | mmc1_dat1 | 1000 | 0 | - | - | CFG_MMC1_DAT1_IN | mmc1_dat1 |
AA5 | mmc1_dat2 | 1000 | 0 | - | - | CFG_MMC1_DAT2_IN | mmc1_dat2 |
Y3 | mmc1_dat3 | 1000 | 0 | - | - | CFG_MMC1_DAT3_IN | mmc1_dat3 |
W6 | mmc1_clk | 1230 | 0 | 520 | 320 | CFG_MMC1_CLK_OUT | mmc1_clk |
Y6 | mmc1_cmd | 0 | 0 | 0 | 0 | CFG_MMC1_CMD_OUT | mmc1_cmd |
AA6 | mmc1_dat0 | 56 | 0 | 40 | 0 | CFG_MMC1_DAT0_OUT | mmc1_dat0 |
Y4 | mmc1_dat1 | 76 | 0 | 83 | 0 | CFG_MMC1_DAT1_OUT | mmc1_dat1 |
AA5 | mmc1_dat2 | 91 | 0 | 98 | 0 | CFG_MMC1_DAT2_OUT | mmc1_dat2 |
Y3 | mmc1_dat3 | 99 | 0 | 106 | 0 | CFG_MMC1_DAT3_OUT | mmc1_dat3 |
Y6 | mmc1_cmd | 0 | 0 | 51 | 0 | CFG_MMC1_CMD_OEN | mmc1_cmd |
AA6 | mmc1_dat0 | 0 | 0 | 0 | 0 | CFG_MMC1_DAT0_OEN | mmc1_dat0 |
Y4 | mmc1_dat1 | 0 | 0 | 363 | 0 | CFG_MMC1_DAT1_OEN | mmc1_dat1 |
AA5 | mmc1_dat2 | 0 | 0 | 199 | 0 | CFG_MMC1_DAT2_OEN | mmc1_dat2 |
Y3 | mmc1_dat3 | 0 | 0 | 273 | 0 | CFG_MMC1_DAT3_OEN | mmc1_dat3 |