Appendix C Memory and I/O Map

Local Memory Map
Address Range	Device
$000000 - $03FFFF	Local EPROM Space (1 Mbit Devices)
$000000 - $07FFFF	Local EPROM Space (2 Mbit Devices)
$000000 - $0FFFFF	Local EPROM Space (4 Mbit Devices)
$100000 - $100FFF	4 kbyte Shared SRAM Space
$101000 - $13FFFF	Local SRAM Space (1 Mbit Devices)
$101000 - $1FFFFF	Local SRAM Space (4 Mbit Devices)
$200000 - $2FFFFF	Reserved
$300000 - $30001F	Serial Interface (DUART)
$300020 - $3FFFFF	DUART Repeated in Memory Map
$400000 - $400001	DIP Switch Register
$400002 - $4FFFFF	Register Repeated in Memory Map
$500000 - $500001	Timer Interrupt
$500002 - $500003	CAN Controller Type
$500004 - $500005	ID7 Control Register
$500008 - $5FFFFF	Registers Repeated in Memory Map
$600000 - $600001	Module ID
$600002 - $6FFFFF	Module ID Repeated in Memory Map
$700000 - $700001	Interrupt Control Register
$700002 - $7FFFFF	ICR Repeated in Memory Map
$800000 - $80003F	CAN Controller Channel 0
$800040 - $8FFFFF	CAN Controller 0 Repeated in Memory Map
$900000 - $90003F	CAN Controller Channel 1
$900040 - $9FFFFF	CAN Controller 1 Repeated in Memory Map
$A00000 - $A00001	User LED 1 (green)
$A00002 - $A00003	User LED 2 (yellow)
$A00004 - $A00005	User LED 3 (red)
$A00006 - $A00007	RESET OUT Channel 0
$A00008 - $AFFFFF	Registers Repeated in Memory Map
$B00000 - $B00001	User LED 4 (green)
$B00002 - $B00003	User LED 5 (yellow)
$B00004 - $B00005	User LED 6 (red)
$B00006 - $B00007	RESET OUT Channel 1
$B00008 - $BFFFFF	Registers Repeated in Memory Map
$C00000 - $FFFFFF	Reserved

VMEbus Memory Map
Address Range	Device
$Cxx000 - $Cxx001	Shared RAM Mailbox with Interrupt Function
$Cxx002 - $Cxx003	Shared RAM Mailbox with Reset Function
$Cxx004 - $CxxFFF	Shared RAM

The address of the Shared RAM in the VMEbus memory map depends on the Module ID value. The Module ID replaces 'xx' in the memory map of table C-2.

DUART Register Map
Address	Read Register Name	Write Register Name
$300001	Mode Register A (MR1A, MR2A)	Mode Register A (MR1A, MR2A)
$300003	Status Register A (SRA)	Clock Select Register A (CSRA)
$300005	Reserved	Command Register A (CRA)
$300007	Rx Holding Register A (RHRA)	Tx Holding Register A (THRA)
$300009	Input Port Change Reg. (IPCR)	Auxiliary Control Register A (ACR)
$30000B	Interrupt Status Register (ISR)	Interrupt Mask Register (IMR)
$30000D	Counter/Timer Upper (CTU)	Counter/Timer Upper Reg. (CTUR)
$30000F	Counter/Timer Lower (CTL)	Counter/Timer Lower Reg. (CTLR)
$300011	Mode Register B (MRB1, MR2B)	Mode Register B (MR1B, MR2B)
$300013	Status Register B (SRB)	Clock Select Register B (CSRB)
$300015	Reserved	Command Register B (CRB)
$300017	Rx Holding Register B (RHRB)	Tx Holding Register B (THRB)
$300019	Interrupt Vector Register (IVR)	Interrupt Vector Register (IVR)
$30001B	Input Port Register (IPR)	Output Port Config. Reg. (OPCR)
$30001D	Start Counter Command	Set Output Port Bits Command
$30001F	Stop Counter Command	Reset Output Port Bits Command

82C200 CAN Controller Register Map
Address Channel 0	Address Channel 1	Register Name
$800001	$900001	Control Register
$800003	$900003	Command Register
$800005	$900005	Status Register
$800007	$900007	Interrupt Register
$800009	$900009	Acceptance Code Register
$80000B	$90000B	Acceptance Mask Register
$80000D	$90000D	Bus Timing Register 0
$80000F	$90000F	Bus Timing Register 1
$800011	$900011	Output Control Register
$800013	$900013	Test Register
$800015	$900015	Transmit Buffer Identifier
$800017	$900017	Transmit Buffer RTR Data Length
$800019 $800027	$900019 $900027	Transmit Buffer Data (8 bytes)
$800029	$900029	Receive Buffer Identifier
$80002B	$90002B	Receive Buffer RTR Data Length
$80002D $80003B	$90002D $90003B	Receive Buffer Data (8 bytes)
$80003D	$90003D	Clock Divider

CC175 - Dual Channel Intelligent CAN Interface for VMEbus - 30 SEP 1996