Section 20 Ethernet Controller (EtherC)
Rev. 1.00 Mar. 12, 2008 Page 764 of 1178
REJ09B0403-0100
20.3.2
EtherC Status Register (ECSR)
ECSR is a 32-bit readable/writable register and indicates the status in the EtherC. This status can
be notified to the CPU by interrupts. When 1 is written to the PSRTO, LCHNG, MPD, and ICD,
the corresponding flags can be cleared. Writing 0 does not affect the flag. For bits that generate
interrupt, the interrupt can be enabled or disabled according to the corresponding bit in ECSIPR.
The interrupts generated due to this status register are indicated in the ECI bit in EESR.
Bit Bit
Name
Initial
Value
R/W Description
31 to 5
All
0
R
Reserved
These bits are always read as 0. The initial value
should not be changed.
4
PSRTO
0
R/W
PAUSE Frame Retransmission Retry Over
Indicates that during the retransmission of PAUSE
frames when the flow control is enabled, the number
of retries has exceeded the upper limit set in the
automatic PAUSE frame retransmission count set
register (TPAUSER).
0: Number of PAUSE frame retransmissions has not
exceeded the upper limit
1: Number of PAUSE frame retransmissions has
exceeded the upper limit
3
0
R
Reserved
This bit is always read as 0. The initial value should
not be changed.
2
LCHNG
0
R/W
Link Signal Change
Indicates that the LNKSTA signal input from the PHY
has changed from high to low or low to high.
To check the current Link state, refer to the LMON bit
in the PHY status register (PSR).
0: Changes in the LNKSTA signal are not detected
1: Changes in the LNKSTA signal are detected (high
to low or low to high)
Summary of Contents for H8S Family
Page 2: ...Rev 1 00 Mar 12 2008 Page ii of xIviii...
Page 8: ...Rev 1 00 Mar 12 2008 Page viii of xIviii...
Page 28: ...Rev 1 00 Mar 12 2008 Page xxviii of xIviii...
Page 48: ...Rev 1 00 Mar 12 2008 Page xlviii of xIviii...
Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Page 1226: ...Rev 1 00 Mar 12 2008 Page 1178 of 1178 REJ09B0403 0100...
Page 1229: ......
Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...