AM1810_15 Datasheet, PDF (190/262 Pages) Texas Instruments – AM1810 ARM® Microprocessor For PROFIBUS

AM1810
SPRS709D – NOVEMBER 2010 – REVISED MARCH 2014
www.ti.com
BYTE ADDRESS
0x01E2 0000 - 0x01E2 1FFF
Table 6-97. EMAC Control Module RAM
DESCRIPTION
EMAC Local Buffer Descriptor Memory
6.22.2 EMAC Electrical Data/Timing
NO.
1 t_{c(MII_RXCLK)}
2 t_{w(MII_RXCLKH)}
3 t_{w(MII_RXCLKL)}
Table 6-98. Timing Requirements for MII_RXCLK (see Figure 6-45)
Cycle time, MII_RXCLK
Pulse duration, MII_RXCLK high
Pulse duration, MII_RXCLK low
1.2V, 1.1V
10 Mbps
100 Mbps
MIN MAX MIN MAX
400
40
140
14
140
14
1.0V
10 Mbps
MIN MAX
400
140
140
UNIT
ns
ns
ns
1
2
3
MII_RXCLK
Figure 6-45. MII_RXCLK Timing (EMAC - Receive)
NO.
1 t_{c(MII_TXCLK)}
2 t_{w(MII_TXCLKH)}
3 t_{w(MII_TXCLKL)}
Table 6-99. Timing Requirements for MII_TXCLK (see Figure 6-46)
Cycle time, MII_TXCLK
Pulse duration, MII_TXCLK high
Pulse duration, MII_TXCLK low
1.2V, 1.1V
10 Mbps
100 Mbps
MIN MAX MIN MAX
400
40
140
14
140
14
1.0V
10 Mbps
MIN MAX
400
140
140
UNIT
ns
ns
ns
1
2
3
MII_TXCLK
Figure 6-46. MII_TXCLK Timing (EMAC - Transmit)
190 Peripheral Information and Electrical Specifications
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