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RM48L940 bảng dữ liệu(PDF) 17 Page - Texas Instruments

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RM48L940, RM48L740, RM48L540
www.ti.com
SPNS175C – APRIL 2012 – REVISED JUNE 2015
Table 4-11. PGE Ethernet Controller: Reduced Media Independent Interface (RMII)
TERMINAL
RESET
SIGNAL
PULL
PULL TYPE
DESCRIPTION
144
TYPE
SIGNAL NAME
STATE
PGE
RMII carrier sense and data
N2HET1[12]/MII_CRS/RMII_CRS_DV
124
valid
RMII synchronous reference
N2HET1[28]/MII_RX_CLK/RMII_REFCLK/MII_RX_AVCLK4
107
clock for receive, transmit and
Fixed 20-µA
control interface
Input
Pulldown
Pulldown
AD1EVT/MII_RX_ER/RMII_RX_ER
86
RMII receive error
N2HET1[24]/MIBSPI1NCS[5]/MII_RXD[0]/RMII_RXD[0]
91
RMII receive data
N2HET1[26]/MII_RXD[1]/RMII_RXD[1]
92
MIBSPI5SOMI[0]/MII_TXD[0]/RMII_TXD[0]
98
RMII transmit data
MIBSPI5SIMO[0]/MII_TXD[1]/RMII_TXD[1]
99
Output
Pullup
None
MIBSPI5CLK/MII_TXEN/RMII_TXEN
100
RMII transmit enable
Table 4-12. PGE Ethernet Controller: Media Independent Interface (MII)
TERMINAL
RESET
SIGNAL
PULL
PULL TYPE
DESCRIPTION
144
TYPE
SIGNAL NAME
STATE
PGE
MIBSPI1NCS[1]/N2HET1[17]/MII_COL
130
Pullup
None
Collision detect
Input
Fixed 20-µA
Carrier sense and receive
N2HET1[12]/MII_CRS/RMII_CRS_DV
124
Pulldown
Pulldown
valid
N2HET1[28]/MII_RX_CLK/RMII_REFCLK/MII_RX_AVCLK4
107
I/O
Pulldown
None
MII output receive clock
N2HET1[30]/MII_RX_DV
127
Received data valid
Input
AD1EVT/MII_RX_ER/RMII_RX_ER
86
Receive error
Fixed 20-µA
N2HET1[28]/MII_RX_CLK/RMII_REFCLK/MII_RX_AVCLK4
107
I/O
Pulldown
Receive clock
Pulldown
N2HET1[24]/MIBSPI1NCS[5]/MII_RXD[0]/RMII_RXD[0]
91
N2HET1[26]/MII_RXD[1]/RMII_RXD[1]
92
Input
Receive data
MIBSPI1NENA/N2HET1[23]/MII_RXD[2]
96
Fixed 20-µA
Pullup
Pulldown
MIBSPI5NENA/MII_RXD[3]
97
N2HET1[10]/MII_TX_CLK/MII_TX_AVCLK4
118
MII output transmit clock
I/O
Pulldown
None
N2HET1[10]/MII_TX_CLK/MII_TX_AVCLK4
118
Transmit clock
MIBSPI5SOMI[0]/MII_TXD[0]/RMII_TXD[0]
98
MIBSPI5SIMO[0]/MII_TXD[1]/RMII_TXD[1]
99
Pullup
None
Transmit data
MIBSPI1NCS[0]/MIBSPI1SOMI[1]/MII_TXD[2]
105
Output
N2HET1[8]/MIBSPI1SIMO[1]/MII_TXD[3]
106
Pulldown
None
MIBSPI5CLK/MII_TXEN/RMII_TXEN
100
Pullup
None
Transmit enable
4.3.1.11 System Module Interface
Table 4-13. PGE System Module Interface
TERMINAL
RESET
SIGNAL
PULL
PULL TYPE
DESCRIPTION
144
TYPE
SIGNAL NAME
STATE
PGE
Power-on reset, cold reset
External power supply monitor
circuitry must drive nPORRST
Fixed 100-µA
low when any of the supplies
nPORRST
46
Input
Pulldown
Pulldown
to the microcontroller fall out
of the specified range. This
terminal has a glitch filter.
See Section 6.8.
Copyright © 2012–2015, Texas Instruments Incorporated
Terminal Configuration and Functions
17
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