TMS320DM8127 Datasheet, PDF (58/365 Pages) Texas Instruments – DaVinci Video Processors

TMS320DM8127
SPRS712C – JUNE 2012 – REVISED MARCH 2014
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4.2.7 EMAC [(R)(G)MII Modes] and MDIO
Table 4-8. EMAC[0] Terminal Functions [(R)(G)MII]
SIGNAL
NAME
NO.
TYPE⁽¹⁾ OTHER ^{(2) (3)}
MUXED
DESCRIPTION
EMAC[0] (G)MII Mode
An EMAC bootmode must be selected via the BTMODE[4:0] pins. Once the EMAC bootmode is selected, the BTMODE[9:8] pins determine
the Ethernet PHY Mode Selection (for example, 00b is MII mode). For more detailed information on EMAC bootmodes and Ethernet PHY
Mode selection, see Section 5.2.6, Ethernet PHY Mode Selection.
These pin functions are available only when GMII or MII modes are selected.
EMAC[0]_MCOL/
EMAC[0]_RGRXCTL/
EMAC[0]_RMRXD[0]/
GP3[24]
L23
I
IPD
DVDD_GPMC
EMAC[0], GP3
PINCNTL236 [G]MII Collision Detect (Sense) input
DSIS: 0
EMAC[0]_MCRS/
EMAC[0]_RGRXD[2]/
EMAC[0]_RMRXD[1]/
GP3[25]
R25
I
IPD
DVDD_GPMC
EMAC[0], GP3
PINCNTL237 [G]MII Carrier Sense input
DSIS: 0
EMAC[0]_GMTCLK/
EMAC[1]_RGRXC/
GPMC_A[6]/
SPI[2]_D[1]
EMAC[1],
K23
O
IPD
DVDD_GPMC
GPMC, SPI[2]
PINCNTL249
GMII Source Synchronous Transmit Clock
DSIS: N/A
EMAC[0]_MRCLK/
EMAC[0]_RGTXC/
EMAC[0]_RMCRSDV/
SPI[3]_SCS[2]/
GP3[27]
EMAC[0],
H27
I
IPD
DVDD_GPMC
SPI[3], GP3
PINCNTL239
[G]MII Receive Clock
DSIS: 0
(1) I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal, MM = Multi Muxed, DSIS = De-
selected Input State
(2) IPD = Internal Pulldown Active, IPU = Internal Pullup Active, DIS = Internal Pull Disabled. This represents the default state of the
Internal Pull after Reset. For more detailed information on pullup/pulldown resistors and situations where external pullup/pulldown
resistors are required, see Section 5.5.1, Pullup/Pulldown Resistors and Section 8.3.17, Pin Behaviors at Reset.
(3) Specifies the operating I/O supply voltage for each signal
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