DRA722_17 Datasheet, PDF (298/408 Pages) Texas Instruments – Infotainment Applications Processor

DRA722, DRA724, DRA725, DRA726
SPRS956B – MARCH 2016 – REVISED JANUARY 2017
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Manual IO Timings Modes must be used to guaranteed some IO timings for GMAC. See Table 7-2 Modes Summary for a list of IO timings
requiring the use of Manual IO Timings Modes. See Table 7-89 Manual Functions Mapping for GMAC RGMII1 for a definition of the Manual
modes.
Table 7-89 lists the A_DELAY and G_DELAY values needed to calculate the correct values to be set in the CFG_x registers.
BALL
C5
A3
B3
B4
B5
A4
D5
C2
C3
C4
B2
D6
BALL NAME
vin2a_d18
vin2a_d19
vin2a_d20
vin2a_d21
vin2a_d22
vin2a_d23
vin2a_d12
vin2a_d13
vin2a_d14
vin2a_d15
vin2a_d16
vin2a_d17
Table 7-89. Manual Functions Mapping for GMAC RGMII1
GMAC_RGMII1_MANUAL1
A_DELAY (ps)
G_DELAY (ps)
530
0
71
1099
142
1337
114
1517
171
1331
0
1328
CFG REGISTER
CFG_VIN2A_D18_IN
CFG_VIN2A_D19_IN
CFG_VIN2A_D20_IN
CFG_VIN2A_D21_IN
CFG_VIN2A_D22_IN
CFG_VIN2A_D23_IN
0
0
170
0
150
0
0
0
60
0
60
0
CFG_VIN2A_D12_OUT
CFG_VIN2A_D13_OUT
CFG_VIN2A_D14_OUT
CFG_VIN2A_D15_OUT
CFG_VIN2A_D16_OUT
CFG_VIN2A_D17_OUT
MUXMODE
3
rgmii1_rxc
rgmii1_rxctl
rgmii1_rxd3
rgmii1_rxd2
rgmii1_rxd1
rgmii1_rxd0
rgmii1_txc
rgmii1_txctl
rgmii1_txd3
rgmii1_txd2
rgmii1_txd1
rgmii1_txd0
298 Timing Requirements and Switching Characteristics
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