5.7 Host-I/F Registers
5.7.1 Host-I/F registers overview
The Host CPU I/F is controlled and operated by means of the following registers:
Table 5-6 System Controller registers overview
Register function
Name
Address
Host-I/F status register
HOSTSTATUS
0000 0000
H
Host-I/F version register
HOSTVERSION 0000 000C
H
Interrupt status register
HOSTINTSTAT
0000 0010
H
Interrupt enable register
HOSTINTENAB 0000 0014
H
Interrupt input register
HOSTINTFLAG 0000 0018
H
Host-I/F DMA control register
HOSTCONTROL 0000 001C
H
ADBus base address 0 register
HOSTADBASE0 0000 0020
H
ADBus base address 1 register
HOSTADBASE1 0000 0024
H
ADBus base address 2 register
HOSTADBASE2 0000 0028
H
ADBus base address 3 register
HOSTADBASE3 0000 002C
H
32-bit access to 8-bit/16-bit registers
All registers can be accessed with 32-bit access.
However writing to bits not specified for registers with less than 32 bit width is
ignored and reading of these bits return an undefined value:
•
32-bit access to 8-bit registers
-
reading of bit[31:8]: undefined values
-
writing to bit[31:8]: ignored
•
32-bit access to 16-bit registers
-
reading of bit[31:16]: undefined values
-
writing to bit[31:16]: ignored
Host CPU Interface
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