Section 20 Ethernet Controller (EtherC)
Rev. 1.00 Mar. 12, 2008 Page 774 of 1178
REJ09B0403-0100
20.3.19 IPG Register (IPGR)
IPGR sets the IPG (Inter Packet Gap). This register must not be changed while the transmitting
and receiving functions of the EtherC mode register (ECMR) are enabled. (For details, refer to
section 20.4.6, Operation by IPG Setting.)
Bit Bit
Name
Initial
Value
R/W Description
31 to 5
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
4 to 0
IPG4 to IPG0 H'13
R/W
Inter Packet Gap
Sets the IPG value every 4-bit time.
H'00: 20-bit time
H'01: 24-bit time
:
:
H'13: 96-bit time (Initial value)
:
:
H'1F: 144-bit time
20.3.20 Automatic PAUSE Frame Set Register (APR)
APR sets the TIME parameter value of the automatic PAUSE frame. When transmitting the
automatic PAUSE frame, the value set in this register is used as the TIME parameter of the
PAUSE frame.
Bit Bit
Name
Initial
Value
R/W Description
31 to 16
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
15 to 0 AP15 to AP0 All 0
R/W
Automatic PAUSE
Sets the TIME parameter value of the automatic
PAUSE frame. At this time, 1 bit means 512-bit time.
Summary of Contents for H8S Family
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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...
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