r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 193

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Bit
10
9
8
7 to 3 —
2
1, 0
Bit Name
ICIS0
WDBE
WAITE
ICIS2
—
Initial Value
1
0
0
All 0
0
All 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Idle Cycle Insert 0
When an external read cycle and external write
cycle are performed consecutively, an idle cycle
can be inserted between the bus cycles.
0: Idle cycle not inserted
1: Idle cycle inserted
Write Data Buffer Enable
The write data buffer function can be used for an
external write cycle or DMAC single address
transfer cycle.
0: Write data buffer function not used
1: Write data buffer function used
WAIT Pin Enable
Selects enabling or disabling of wait input by the
WAIT pin.
0: Wait input by WAIT pin disabled
1: Wait input by WAIT pin enabled
Reserved
These bits can be read from or written to.
However, the write value should always be 0.
Idle Cycle Insert 2
When an external write cycle and external read
cycle are performed consecutively, an idle cycle
can be inserted between the bus cycles.
0: Idle cycle not inserted
1: Idle cycle inserted
Reserved
These bits can be read from or written to.
However, the write value should always be 0.
WAIT pin can be used as I/O port
Rev. 1.00 Sep. 19, 2008 Page 165 of 1270
Section 6 Bus Controller (BSC)
REJ09B0466-0100