Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
2518
Datasheet
19.6.60
GSBUSCFG1—Offset C104h
Global SoC Bus Configuration Register 1
Access Method
Default: 00000F00h
4
0h
RW
INCR32BRSTENA:
INCR32 Burst Type Enable
3
0h
RW
INCR16BRSTENA:
INCR16 Burst Type Enable
2
1h
RW
INCR8BRST:
INCR8 Burst Type Enable
1
1h
RW
INCR4BRSTENA:
INCR4 Burst Type Enable
0
0h
RW
INCRBRSTENA:
Undefined Length INCR Burst Type Enable (INCRBrstEna). Input to
BUS-GM When enabled, this has higher priority than other burst types. For the AHB
configuration. if this bit is set to 1, AHB master tries to do only one INCR burst for each
transfer unless it has to break it at a 1Kbyte boundary. If this bit is set to 0, the AHB
master may still use INCR burst type at the beginning and end bursts of transfers to
align the address. The middle bursts are INCR4/8/16, depending when the type is
enabled.
Bit
Range
Default &
Access
Description
Type:
Memory Mapped I/O Register
(Size: 32 bits)
GSBUSCFG1:
BAR Type:
PCI Configuration Register (Size: 32 bits)
BAR Reference:
[B:0, D:22, F:0] + 10h
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0
RS
VD0
EN1KP
A
G
E
BRE
Q
LIMIT
DA
TA
DRS
P
C
DES
A
DRS
P
C
Bit
Range
Default &
Access
Description
31:13
0h
RO
RSVD0:
reserved
12
0h
RW
EN1KPAGE:
1k Page Boundary Enable: By default (this bit is disabled) the AXI breaks
transfers at the 4k page boundary. When this bit is enabled, the AXI master (DMA data)
breaks transfers at the 1k page boundary.
11:8
fh
RW
BREQLIMIT:
AXI Pipelined Transfers Burst Request Limit (PipeTransLimit) The field
controls the number of outstanding pipelined transfers requests the AXI master will
push to the AXI slave. Once the AXI master reaches this limit, it will not make more
requests on the AXI ARADDR and AWADDR buses until the associated data phases
complete.This field is encoded as follows: h0: 1 request h1: 2 requests h2: 3 requests
h3: 4 requests hF: 16 requests
7:4
0h
RW
DATADRSPC:
Reserved
3:0
0h
RW
DESADRSPC:
Reserved