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| DRA790 Datasheet, PDF (263/436 Pages) Texas Instruments – Infotainment Applications Processor | |||
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DRA790, DRA791
DRA793, DRA797
SPRS968A â AUGUST 2016 â REVISED FEBRUARY 2017
BALL
N6
N5
Table 5-102. Manual Functions Mapping for GMAC RMII1 (continued)
BALL NAME
uart3_txd
uart3_rxd
GMAC_RMII1_MANUAL1
A_DELAY
(ps)
G_DELAY
(ps)
2553
443
1943
1110
CFG REGISTER
CFG_UART3_TXD_IN
CFG_UART3_RXD_IN
MUXMODE
0
2
rmii1_rxer
rmii1_crs
5.9.6.19.4 GMAC RGMII Timings
CAUTION
The I/O Timings provided in this section are valid only for some GMAC usage
modes when the corresponding Virtual I/O Timings or Manual I/O Timings are
configured as described in the tables found in this section.
Table 5-103, Table 5-104 and Figure 5-72 present timing requirements for receive RGMIIn operation.
Table 5-103. Timing Requirements for rgmiin_rxc - RGMIIn Operation
NO. PARAMETER
1
tc(RXC)
DESCRIPTION
Cycle time, rgmiin_rxc
2
tw(RXCH)
Pulse duration, rgmiin_rxc high
3
tw(RXCL)
Pulse duration, rgmiin_rxc low
4
tt(RXC)
Transition time, rgmiin_rxc
SPEED
MIN
10 Mbps
360
100 Mbps
36
1000 Mbps
7.2
10 Mbps
160
100 Mbps
16
1000 Mbps
3.6
10 Mbps
160
100 Mbps
16
1000 Mbps
3.6
10 Mbps
100 Mbps
1000 Mbps
MAX
440
44
8.8
240
24
4.4
240
24
4.4
0.75
0.75
0.75
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Table 5-104. Timing Requirements for GMAC RGMIIn Input Receive for 10/100/1000 Mbps (1)
NO.
5
PARAMETER
tsu(RXD-RXCH)
6
th(RXCH-RXD)
DESCRIPTION
Setup time, receive selected signals valid before
rgmiin_rxc high/low
Hold time, receive selected signals valid after
rgmiin_rxc high/low
MODE
RGMII0/1
RGMII0/1
MIN MAX UNIT
1
ns
1
ns
Copyright © 2016â2017, Texas Instruments Incorporated
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Product Folder Links: DRA790 DRA791 DRA793 DRA797
Specifications 263
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