2
1
3
4
4
SRIOSGMIIREFCLK(N|P)
TMS320C6474
www.ti.com
SPRS552F – OCTOBER 2008 – REVISED JULY 2010
Table 7-59. EMAC Interrupt Control (EMIC) Registers (continued)
HEX ADDRESS
ACRONYM
REGISTER NAME
02C8 101C
C_MISC_EN
Core n Misc Interrupt Enable Register, n = 0, 1 and 2
02C8 1040
C_RX_THRESH_STAT
Core n Receive Threshold Masked Interrupt Status Register, n = 0, 1
and 2
02C8 1044
C_RX_STAT
Core n Receive Interrupt Masked Interrupt Status Register, n = 0, 1
and 2
02C8 1048
C_TX_STAT
Core n Transmit Interrupt Masked Interrupt Status Register, n = 0, 1
and 2
02C8 104C
C_MISC_STAT
Core n Misc Interrupt Masked Interrupt Status Register, n = 0, 1 and
2
02C8 1070
C_RX_IMAX
Core n Receive Interrupts Per Millisecond, n = 0, 1 and 2
02C8 1074
C_TX_IMAX
Core n Transmit Interrupts Per Millisecond, n = 0, 1 and 2
7.13.3 EMAC Electrical Data/Timing (SGMII)
The TMS320C6474 Hardware Design Guide application report (literature number
SPRAAW7
) specifies a
complete EMAC anc SGMII interface solutions for the C6474 device as well as a list of compatible EMAC
and SGMII devices. TI has performed the simulation and system characterization to ensure all EMAC and
SGMII interface timings in this solution are met.
TI only supports designs that follow the board design guidelines outlined in the
SPRAAW7
application report.
Table 7-60. Timing Requirements for SRIOSGMIIREFCLK(N|P)
(1)
(see
Figure 7-35
)
NO.
PARAMETERS
MIN
MAX
UNIT
1
t
c(SRIOSGMIIREFCLK)
Cycle time, SRIOSGMIIREFCLK(N|P)
3.2
8
ns
2
t
w(CLKH)
Pulse duration, CLK(N|P) high
0.4C
ns
3
t
w(CLKL)
Pulse duration, CLK(N|P) low
0.4C
ns
4
t
t(CLK)
Transition time, CLK(N|P)
50
1300
ps
5
t
j(CLK)
Period Jitter (RMS), CLK(N|P)
4
ps
(1)
C=1/SRIOSGMIIREFCLK(N|P)
Figure 7-35. SRIOSGMIIREFCLK(N|P) Timing
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