Renesas HD6417641 Network Card User Manual


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Section 24 List of Registers
Rev. 4.00 Sep. 14, 2005 Page 875 of 982
REJ09B0023-0400
Register Name Abbreviation Bit No. Address Module Access States
Port J control register PJCR 32 H'A443 0020 PFC 8/16/32
Port E I/O register PEIOR 16 H'A443 0038 8/16
Port E MTU R/W enable register PEMTURWER 16 H'A443 003A 8/16
— — — —
Port A data register PADR 16 H'A443 0026 PORT 8/16
Port B data register PBDR 16 H'A443 0028 8/16
Port C data register PCDR 16 H'A443 002A 8/16
Port D data register PDDR 16 H'A443 002C 8/16
Port E data register PEDR 16 H'A443 002E 8/16
Port F data register PFDR 16 H'A443 0030 8/16
Port G data register PGDR 16 H'A443 0032 8/16
Port H data register PHDR 16 H'A443 0034 8/16
Port J data register PJDR 16 H'A443 0036 8/16
Notes: 1. This register only accepts 16-bit writing to prevent incorrect writing. In this case, the
upper eight bits of the data must be H'5A, otherwise writing cannot be performed.
When reading, read from the same address in bytes.
2. This register only accepts 16-bit writing to prevent incorrect writing. In this case, the
upper eight bits of the data must be H'A5, otherwise writing cannot be performed.
When reading, read from the same address in bytes.
3. This register only accepts 32-bit writing to prevent incorrect writing. In this case, the
upper 16 bits of the data must be H'A55A, otherwise writing cannot be performed.
When reading, read from the same address in unit of 32 bits. At this time, the upper 16
bits are read as 0s.