HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 147

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

6.1.3
Table 6.1 summarizes the input/output pins of the bus controller.
Table 6.1
Name
Chip select 0 to 7
Address strobe
Read
High write
Low write
Wait
Bus request
Bus acknowledge
Pin Configuration
Bus Controller Pins
Abbreviation
CS
AS
RD
HWR
LWR
WAIT
BREQ
BACK
0
to CS
7
I/O
Output
Output
Output
Output
Output
Input
Input
Output
Function
Strobe signals selecting areas 0 to 7
Strobe signal indicating valid address output
on the address bus
Strobe signal indicating reading from the
external address space
Strobe signal indicating writing to the external
address space, with valid data on the upper
data bus (D
Strobe signal indicating writing to the external
address space, with valid data on the lower
data bus (D
Wait request signal for access to external
three-state access areas
Request signal for releasing the bus to an
external device
Acknowledge signal indicating release of the
bus to an external device
Rev.4.00 Aug. 20, 2007 Page 103 of 638
15
7
to D
to D
0
8
)
)
REJ09B0395-0400
6. Bus Controller