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Appendix B Internal I/O Register
WCR—Wait Control Register
Bit
7
—
Initial value
1
Read/Write
—
Wait mode select 1 and 0
Bit 3
Bit 2
WMS1
WMS0
Wait Mode
0
0
Programmable wait mode
1
No wait states inserted by
wait-state controller
1
0
Pin wait mode 1
1
Pin auto-wait mode
WCER—Wait-State Controller Enable Register
Bit
7
WCE7
Initial value
1
Read/Write
R/W
Rev. 3.00 Mar 21, 2006 page 770 of 814
REJ09B0302-0300
6
5
—
—
1
1
—
—
6
5
WCE6
WCE5
WCE4
1
1
R/W
R/W
R/W
Wait-state controller enable 7 to 0
0 Wait-state control is disabled (pin wait mode 0)
1 Wait-state control is enabled
H'EE
4
3
2
—
WMS1
WMS0
1
0
0
—
R/W
R/W
Wait count 1 and 0
Bit 1
Bit 0
WC1
WC0
Number of Wait States
0
0
No wait states inserted by
wait-state controller
1
1 state inserted
1
0
2 states inserted
1
3 states inserted
H'EF
4
3
2
WCE3
WCE2
1
1
1
R/W
R/W
Bus controller
1
0
WC1
WC0
1
1
R/W
R/W
Bus controller
1
0
WCE1
WCE0
1
1
R/W
R/W
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