Bus Interface Unit (Biu) Equates - Motorola DSP56303 User Manual

Bus Interface Unit (BIU) Equates

A.10 Bus Interface Unit (BIU) Equates
; EQUATES for BIU
;
;---------------------------------------------------------------
; Register Addresses Of BIU
M_BCR EQU $FFFFFB
M_DCR EQU $FFFFFA
M_AAR0 EQU $FFFFF9
M_AAR1 EQU $FFFFF8
M_AAR2 EQU $FFFFF7
M_AAR3 EQU $FFFFF6
M_IDR EQU $FFFFF5 ;
; Bus Control Register
M_BA0W EQU $1F
M_BA1W EQU $3E0
M_BA2W EQU $1C00
M_BA3W EQU $E000
M_BDFW EQU $1F0000
M_BBS EQU 21
M_BLH EQU 22
M_BRH EQU 23
; DRAM Control Register
M_BCW EQU $3
M_BRW EQU $C
M_BPS EQU $300
M_BPLE EQU 11
M_BME EQU 12
M_BRE EQU 13
M_BSTR EQU 14
M_BRF EQU $7F8000
M_BRP EQU 23
; Address Attribute Registers
M_BAT EQU $3
M_BAAP EQU 2
M_BPEN EQU 3
M_BXEN EQU 4
M_BYEN EQU 5
M_BAM EQU 6
M_BPAC EQU 7
M_BNC EQU $F00
M_BAC EQU $FFF000
; control and status bits in SR
M_CP EQU $c00000
M_CA EQU 0
A-18
; Bus Control Register
; DRAM Control Register
; Address Attribute Register 0
; Address Attribute Register 1
; Address Attribute Register 2
; Address Attribute Register 3
;ID Register
; Area 0 Wait Control Mask (BA0W0-BA0W4)
; Area 1 Wait Control Mask (BA1W0-BA14)
; Area 2 Wait Control Mask (BA2W0-BA2W2)
; Area 3 Wait Control Mask (BA3W0-BA3W3)
; Default Area Wait Control Mask (BDFW0-BDFW4)
; Bus State
; Bus Lock Hold
; Bus Request Hold
; In Page Wait States Bits Mask (BCW0-BCW1)
; Out Of Page Wait States Bits Mask (BRW0-BRW1)
; DRAM Page Size Bits Mask (BPS0-BPS1)
; Page Logic Enable
; Mastership Enable
; Refresh Enable
; Software Triggered Refresh
; Refresh Rate Bits Mask (BRF0-BRF7)
; Refresh prescaler
; External Access Type and Pin Definition Bits
;Mask BAT(1:0)
; Address Attribute Pin Polarity
; Program Space Enable
; X Data Space Enable
; Y Data Space Enable
; Address Muxing
; Packing Enable
; Number of Address Bits to Compare Mask
; Address to Compare Bits Mask BAC(11:0)
; mask for CORE-DMA priority bits in SR
; Carry
DSP56303 User's Manual