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Table 8 PC87782 Detailed Memory Map (Sheet 1 of 3)
Starting Address
(hex)
Size
Contents
0000
8000
E000
EA90
F800
F900
F902
F904
F906
F910
F912
F914
F918
FB00
FB02
FB04
FB06
FB10
FB12
FB14
FB16
FC00
FC02
FC02
FC04
FC08
FC0A
FC0C
FC10
FC12
FC14
FC20
FC22
FC24
FC26
FC28
FC2A
FC2C
FC2E
FC40
FC60
FC80
32K Base Memory (ROM and/or RAM, depending on environment)
24K Reserved
512 LAN Receive Buffer RAM
2784 System RAM (EA90-F56F hex)
128 LAN Transmit Buffer RAM
byte BCFG, BIU Configuration Register
word I/O Configuration Register
word SZCFG0, Static Zone 0 Configuration Register
word SZCFG1, Static Zone 1 Configuration Register
byte MCFG, Module Configuration Register
byte DBGCFG, Debug Configuration Register
byte MSTAT, Module Status Register (read-only register)
byte DBGFRZEN, Debug Freeze Enable Register
byte PBDIR, Port B Direction Register
byte PBDIN, Port B Data Input Register
byte PBDOUT, Port B Data Output Register
byte PBWKPU, Port B Weak Pull-Up Register
byte PCDIR, Port C Direction Register
byte PCDIN, Port C Data Input Register
byte PCDOUT, Port C Data Output Register
byte PCWKPU, Port C Weak Pull-Up Register
word LNIFCTL, LAN Interface Control Register
word LNRBFCTL, LAN Receive Buffer Control Register
word LNRXCTL, LAN Receive Control Register
word LNTXCTL, LAN Transmitter Control Register
word LNRFCR, LAN Receiver Filter Control Register
word LNRFDR, LAN Receiver Filter Data Register
word LNTXSTAT, LAN Transmitter Status Register
word LNIPND, LAN Interrupt Pending Register
word LNIEN, LAN Interrupt Enable Register
word LNICL, LAN Interrupt Clear Register
word LNMSGLEN0, LAN Message Length Register 0
word LNMSGSTAT0, LAN Message Status Register 0
word LNMSGLEN1, LAN Message Length Register 1
word LNMSGSTAT1, LAN Message Status Register 1
word LNMSGLEN2, LAN Message Length Register 2
word LNMSGSTAT2, LAN Message Status Register 2
word LNMSGLEN3, LAN Message Length Register 3
word LNMSGSTAT3, LAN Message Status Register 3
byte RSTSTAT, Reset Status Register
byte PMCSR, Power Management Control/Status Register
byte WKEDG1, Wake-Up Edge Detection Register 1