HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 130

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

6.2.3 Wait Control Register (WCR)
WCR is an 8-bit readable/writable register that selects the wait mode for the wait-state controller
(WSC) and specifies the number of wait states.
WCR is initialized to H'F3 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 4—Reserved: Read-only bits, always read as 1.
Bits 3 and 2—Wait Mode Select 1 and 0 (WMS1/0): These bits select the wait mode.
Bit 3
WMS1
0
1
Bit
Initial value
Read/Write
Bit 2
WMS0
0
1
0
1
Description
Programmable wait mode
No wait states inserted by wait-state controller
Pin wait mode 1
Pin auto-wait mode
—
—
7
1
Reserved bits
—
—
6
1
—
—
5
1
116
—
—
4
1
Wait mode select 1/0
These bits select the wait mode
WMS1
R/W
3
0
WMS0
R/W
2
0
Wait count 1/0
These bits select the
number of wait states
inserted
WC1
R/W
1
1
(Initial value)
WC0
R/W
0
1