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Register Descriptions
A-10
Wait-State Generator Control Register (WSGR) — Except ’C209— I/O Address FFFCh
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 1 1 1 1 1 1 1 1 1 1 1 1
Reserved
†
ISWS DSWS PSUWS PSLWS
R/W
0
0
1
1
0
0
1
1
0 wait states
1 wait state
2 wait states
3 wait states
4 wait states
5 wait states
6 wait states
7 wait states
0
0
0
0
1
1
1
1
Lower program
wait states
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0 wait states
1 wait state
2 wait states
3 wait states
4 wait states
5 wait states
6 wait states
7 wait states
0
0
0
0
1
1
1
1
Upper program
wait states
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0 wait states
1 wait state
2 wait states
3 wait states
4 wait states
5 wait states
6 wait states
7 wait states
0
0
0
0
1
1
1
1
Data wait states
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0 wait states
1 wait state
2 wait states
3 wait states
4 wait states
5 wait states
6 wait states
7 wait states
0
0
0
0
1
1
1
1
I/O wait states
0
1
0
1
0
1
0
1
R/W R/W R/W
†
These reserved bits are always read as 0s. Writes have no effect.
Wait-State Generator Control Register (WSGR) — ’C209 — I/O Address FFFFh
15 4 3 2 1 0
0 1 1 1 1
Reserved
†
AVIS ISWS DSWS PSWS
R/W
0 wait states
1 wait state
0
1
Program wait states
0 wait states
1 wait state
0
1
Data wait states
0 wait states
1 wait state
I/O wait states
0
1
Address visibility mode disabled
Address visibility mode enabled
0
1
R/W R/W R/W
Address visibility mode
†
These reserved bits are always read as 0s. Writes have no effect.