STP2200ABGA Datasheet, PDF (16/36 Pages) List of Unclassifed Manufacturers – Uniprocessor System Controller

STP2200ABGA
USC
Uniprocessor System Controller
0
UPA_ADDRBUS0
UPA_SREPLY
to master
UPA_SREPLY
to slave
BMX_CMD
DATA_STALL
UPA_DATA 64
UPA_DATA 128
12
34
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19
S_WAS
X_PIS
S_SWS
Figure 10. Best-Case Timing for Non-Cached Single Write, UPA128 -> UPA64
0
12
34
5
67
8
9 10 11 12 13 14 15 16 17 18 19
UPA_ADDRBUS0
UPA_SREPLY
to master
UPA_SREPLY
to slave
BMX_CMD
S_WAB
X_PIB
S_SWB
DATA_STALL
UPA_DATA 64
UPA_DATA 128
Figure 11. Best-Case Timing for Non-Cached Block Write, UPA128 -> UPA64
Figure 12 and Figure 13 show a U2S single and block read from the FFB, referenced to the P_Reply from the
FFB.
0
12
34
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19
UPA_PREPLY P_RASB
UPA_SREPLY
to master
UPA_SREPLY
to slave
BMX_CMD
S_RAS
S_SRS
DATA_STALL
UPA_DATA 64
UPA_DATA 128
Figure 12. Best-Case Timing for Non-Cached Single Read, UPA64 -> UPA64
16
July 1997