Universe Configuration Registers
6-9
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
D_PE
S_ERR
R_MA
R_TA
S_TA
DEVSEL
DP_D
TFBBC
Reserved
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved
MF-BBC
SERR_EN
WAIT
PERESP
VGAPS
MWI_EN
SC
BM
MS
IOS
Register Map 6-2. Universe PCI Configuration Space and Status, PCI_CSR
D_PE
Detected parity error (write 1 to clear).
Binary 0=no parity error, 1=parity error.
S_ERR
Signalled SERR# (write 1 to clear).
Binary 0=SERR# not asserted, 1=SERR# asserted.
R_MA
Received master abort generated by master (write 1 to clear).
Binary 0=no, 1=yes.
R_TA
Received target abort and master detected it (write 1 to clear).
Binary 0=no, 1=yes.
S_TA
Signalled target abort, target terminated transaction (write 1 to clear).
Binary 0=no, 1=yes.
DEVSEL
Device select timing (read only). Binary 01=medium speed device.
DP_D
Data parity detected, master detected/generated data parity error.
Binary 0=no, 1=yes.
TFBBC
Target fast back-to-back capable (read only). The Universe can not accept
back-to-back cycles from a different agent.
MF-BBC
Master fast back-to-back enable (read only). The Universe never gener-
ates fast back-to-back transactions.
SERR_EN
SERR# driver enable, in conjunction with PERESP to report address parity
errors with SERR#.
Binary 0=disable, 1=enable.
WAIT
Wait cycle control (read only).
Binary 0=no address/data stepping.
PERESP
Parity error response, allow assertion of PERR# to report data parity
errors.
Binary 0=disable, 1=enable.
Summary of Contents for BajaPPC-750
Page 2: ...BajaPPC 750 PowerPC Based Single Board Computer User s Manual May 2002...
Page 4: ...BajaPPC 750 PowerPC Based Single Board Computer User s Manual May 2002...
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Page 19: ...xii BajaPPC 750 Contents...
Page 57: ...3 12 BajaPPC 750 Central Processing Unit May 2002...
Page 77: ...5 12 BajaPPC 750 PMC PCI Interface May 2002...
Page 111: ...6 34 BajaPPC 750 VMEbus Interface May 2002...
Page 135: ...8 18 BajaPPC 750 Serial and Parallel I O May 2002...
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